Keyboards / Compare

AULA F75 vs Keychron K8 Ultra 8K

A

Product A: AULA

F75

81 of 164 known

Change AULA F75

Compare the Keychron K8 Ultra 8K with

Search keyboards

B

Product B: Keychron

K8 Ultra 8K

86 of 164 known

Change Keychron K8 Ultra 8K

Compare the AULA F75 with

Search keyboards

All 164 fields

Every value links to where we found it.

Only differences

AAULA F75

BKeychron K8 Ultra 8K

General

1 of 9 differ

Series

Not available

K Ultra2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

F75, AULA-F75-BK-Reaper-BPPM1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026Exact available ANSI / Black / LEOBOG Reaper Switch variant. The reference is the original F75, not F75 Pro, Max, Ultra or wired-only versions.

K8U-J11Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard.jsRead 8 October 2026Exact Global/US variant Fully Assembled / Black / Keychron Apex Switch - Red. Brown K8U-J3 and Banana K8U-J4 are excluded from this reference configuration.

GTIN / EAN

Not available

48949790579691Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard.jsRead 8 October 2026Exact K8U-J1 variant barcode. Shopify weight 0 is a placeholder, not keyboard mass.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

Not available

Status

Available1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026Current maker selected variant available and past exact-model reviews establish released hardware. Does not guarantee future stock.

Available6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026August 19, 2026 tested retail-model review establishes released product. Does not claim current in-stock status.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026

Black1Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard.jsRead 8 October 2026

Segment

Enthusiast2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Marketed as a customizable mechanical board for DIY typing, everyday work and gaming.

Enthusiast2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Customizable wireless mechanical keyboard marketed for typing, work and gaming.

Sold asiParts fitted when sold. A complete keyboard includes switches and keycaps. Barebones includes neither.

Complete1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026Prebuilt selected variant includes fitted Reaper switches and keycaps. Shopify shipping weight 1400g is unlabelled package scope and omitted.

Complete1Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard.jsRead 8 October 2026Fully assembled reference variant includes fitted Apex Red switches and PBT keycaps.

Layout

5 of 12 differ

Form factoriLayout size or shape. A percentage describes the layout, not the number of keys.

75 %2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

TKL2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Layout standardiPhysical key layout standards sold for this model. Regional language names are listed separately.

ANSI1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026

ANSI2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Regional layouts

ANSI1Maker product pageepomaker.com/products/epomaker-aula-f75.jsRead 8 October 2026Maker layout selector calls this configuration ANSI. Actual US-style English legends are visible in its exact variant photo. ISO layouts are excluded.

US English2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Global/US ANSI reference has US English legends. Regional ISO/JIS products are not inherited.

Keys in regional layoutiPhysical typing and function keys in the stated regional layout. Separate media buttons, macro buttons and rotary controls are excluded. A Touch ID or Lock key in a key row counts, as on Apple keyboards.

802Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Current ANSI specification states 80 physical typing/function keys. Exact variant image and original manual match rows 13 + 15 + 15 + 14 + 14 + 9. Rotary knob is excluded. PgUp/PgDn/End are dedicated, Home is Fn+End.

875Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Printed p 10 states 87. Physical typing/function keys, including top-right ordinary key positions, not separate rotary/media controls.

Key legends for

Windows3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Exact Black ANSI fitted keycaps use Windows legends. Mac mode does not replace their printed labels.

macOS, Windows2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Numpad

No3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Exact 80-key diagram excludes numeric keypad.

No5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026TKL manual complete layout pp 12-15 excludes number pad.

Function row

Yes3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Diagram includes F1-F12.

Yes5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Complete ANSI layouts pp 12-15 include F1-F12.

Dedicated arrow keys

Yes3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Diagram shows separate four arrows.

Yes5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Complete layouts pp 12-15 show separate four arrows.

Navigation keysiAvailability of Home, End, Page Up and Page Down as dedicated keys or through an Fn layer.

Not available

Full5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Layouts include separate Home, End, PageUp, PageDown.

Key stagger

Row-staggered3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Diagram has staggered typing rows.

Row-staggered5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026ANSI layout drawings pp 12-15 show staggered typing rows.

Bottom row

Not available

Not available

Low profile

Not available

Not available

Switches

11 of 25 differ

Switch sensing technologyiKey sensing technology. Hall effect and TMR are different sensor types. A mixed board is identified explicitly. Magnetic switch housing alone does not identify the sensor.

Mechanical2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Mechanical5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Switch feel

Linear2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Linear3Maker product pagekeychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-5.pngRead 8 October 2026Apex Red column explicitly Linear. Other switch columns excluded.

Switch maker

LEOBOG2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Keychron2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Switch models

Reaper2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Apex Red2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Switch stem

Not available

MX cross4Maker product pagekeychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-2-2.pngRead 8 October 2026Exact Apex diagram explicitly labels POM, MX stem. Reinforced wall/box around MX-compatible stem is not a different keycap mount.

Actuation forceiForce at the point where a key registers. Initial spring force is not actuation force. Adjustable switches require a stated actuation setting.

45gf4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Dedicated exact Reaper sheet explicitly actuation 45±3g, separately initial 36 gf. Current keyboard table calls 36 gf Trigger Force. Exact F75/Reaper Laptop Mag review also quotes 45g. Use the clearly distinguished contact-actuation value without inventing the reason for the keyboard label conflict.

45gf3Maker product pagekeychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-5.pngRead 8 October 2026Apex Red operating force 45 ±10 gf at fixed mechanical pre-travel 2.0 ±0.5 mm. This is not initial spring or bottom-out force.

Bottom-out forceiForce at the end of the switch travel. It is not the initial spring force or the tactile peak.

55gf4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Dedicated exact Reaper sheet explicitly 55±3 gf bottom-out, not actuation or initial force.

Not available

Tactile bump forceiPeak force of the tactile bump. It is not the force at initial movement or at bottom-out.

Not available

Not available

Actuation pointiDistance before a key registers. For adjustable boards, the default profile or setting is stated in the source note.

1.8mm4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Exact fixed-contact Reaper sheet 1.8±0.3 mm actuation travel. No adjustable setting inferred.

2mm3Maker product pagekeychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-5.pngRead 8 October 2026Red pre-travel 2.0 ±0.5 mm. Mechanical contact actuation, not an adjustable setting.

Total travel

3.6mm4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Reaper-specific keyboard table and dedicated sheet 3.6±0.3 mm. General keyboard/manual row 4.0 mm conflicts. Exact selected component scope takes precedence. No cause is asserted.

4mm3Maker product pagekeychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-5.pngRead 8 October 2026Apex Red travel 4.0 mm with published tolerance +0.1/-0.4 mm.

Rated keystrokes

60million4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Exact Reaper maker sheet 60 million strokes. This is per-switch rated life, not measured keyboard lifetime.

Not available

Factory-lubed switches

Yes2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Yes2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Adjustable actuation

Not available

Not available

Actuation rangeiSelectable actuation distances. These are settings, not a measured usable travel range.

Not available

Not available

Actuation stepiSmallest documented increment between selectable actuation settings.

Not available

Not available

Per-key actuationiActuation can be configured individually for supported keys. The source note identifies any excluded keys.

Not available

Not available

Rapid trigger

Not available

No6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Exact review expressly says no rapid trigger. Firmware version unstated, this is the reviewed 2026 feature scope.

Minimum rapid trigger movementiSmallest selectable movement used to reset or reactivate a key. This is a setting, not measured accuracy.

Not available

Not available

Multi-action keys

Not available

Not available

SOCD handling

Not available

Yes7Reviewtechradar.com/computing/keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Exact tested K8 Ultra Launcher has SOCD with three modes for key priority. This is software-assisted binary key handling, not proof of analog gamepad output. Firmware version unstated.

Analog inputiCan send variable gamepad or joystick input. Magnetic sensing or adjustable actuation alone does not establish analog output.

Not available

Not available

Hot-swap socketsiSwitches can be replaced without soldering. Magnetic compatibility must be checked separately.

5-pin4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 8 October 2026Exact factory Reaper component is 5-pin, and selected keyboard declares full-key mechanical hot-swap. Explicit 3/5-pin compatibility is separately stated in EPOMAKER Official Store product description, not inferred from F99.

5-pin6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Exact K8 Ultra review explicitly 3/5-pin compatibility and tested a Cherry MX replacement. Tested Brown configuration shares same chassis/PCB. No transferred Brown force or latency.

Compatible switches

3-pin and 5-pin mechanical switches11Retailer pagenewegg.com/p/32N-00J6-00474Read 8 October 2026EPOMAKER Official Store model F75 descriptive Specifications explicitly compatible 3/5-pin switches. Other unrelated feed errors, including inch units, tactile label and F68 package typo, are not used. Maker full-key hot-swap and supplied 5-pin Reaper corroborate the platform scope.

3-pin and 5-pin MX-style mechanical switches6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Conventional mechanical MX-style switches. Does not establish magnetic-switch support.

Stabilizers

Not available

PCB screw-in2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Factory-lubed stabilizers

Not available

Not available

Keycaps

1 of 5 differ

Keycap material

PBT2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

PBT2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Legend method

Doubleshot2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Doubleshot2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Keycap profile

Cherry2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

OSA2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Keycap thickness

Not available

Not available

Shine-through legendsiLight passes through the legends. Translucent keycap sides alone do not count.

No10Reviewrtings.com/keyboard/reviews/aula/f99-f75Read 8 October 2026Public narrative explicitly says both base F99/F75 lack shine-through caps. This reference is top-printed Black, not side-printed Pro. No protected F99 measurement used.

No2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Performance

6 of 11 differ

Polling rate per connectioniDocumented report rates for each connection. Required receivers or optional adapters are identified in the row and source note.

AAULA F75

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	1,000	Not available
2.4 GHz	1,000	Included 2.4 GHz USB receiver
Bluetooth	125	Not available

Source3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 3 expressly wired 1000 Hz, 2.4G 1000 Hz, BT 125 Hz. These are maker report rates, not measured latency.

BKeychron K8 Ultra 8K

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	8,000	Not available
2.4 GHz	8,000	Included Type-A 2.4 GHz receiver
Bluetooth	125	Not available

Source2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Selectable maxima. Manual p 19 states default wired / 2.4 GHz 1000 Hz and Bluetooth 125 Hz. Launcher changes report rate. No scan rate or latency is calculated.

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

8,000Hz=CalculatedFrom Polling rate per connection

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

8,000Hz=CalculatedFrom Polling rate per connection

Polling rate (2.4 GHz)

1,000Hz=CalculatedFrom Polling rate per connection

8,000Hz=CalculatedFrom Polling rate per connection

Polling rate (Bluetooth)

125Hz=CalculatedFrom Polling rate per connection

125Hz=CalculatedFrom Polling rate per connection

Scan rateiHow often the keyboard reads its switches. A USB report rate does not establish a scan rate.

Not available

Not available

Input latency (claimed)iMaker-published input or response latency with conditions in the source note. Do not calculate this from polling rate.

Not available

Not available

Key rollover per connectioniKeys registered simultaneously over the stated connection. Connection is omitted if the source does not specify it.

AAULA F75

Connection	Rollover
USB (wired)	NKRO
2.4 GHz	NKRO
Bluetooth	NKRO

Source3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 3 expressly all BT/2.4G/wired modes support full-key no-conflict. Stored as the maker NKRO claim. No F99 measurement is transferred.

BKeychron K8 Ultra 8K

Connection	Rollover
USB (wired)	NKRO
2.4 GHz	NKRO
Bluetooth	NKRO

Source2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Exact specifications state NKRO for both wireless and wired modes. Wireless includes its listed Bluetooth and 2.4 GHz modes.

Anti-ghosting

Not available

Not available

Adjustable debounce

Not available

Yes7Reviewtechradar.com/computing/keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Exact review identifies separate press/reset debounce sliders 10-50 ms with 1 ms increments.

Minimum debounce

Not available

10ms7Reviewtechradar.com/computing/keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Lowest selectable 10 ms in reviewer Launcher interface. Not a measured end-to-end latency or a firmware-independent physical delay.

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for one tested setup per row. Settings and test method are stated in the source note. Missing conditions are not inferred.

Not available

Not available

Actuation point (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Total travel (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Operating force (measured)iReviewer-measured force at actuation. The switch and actuation setting are stated in the source note.

Not available

Not available

Typing noise (measured)iReviewer-measured A-weighted typing sound level. Measurement distance and conditions are stated in the source note.

Not available

Not available

Battery life (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iReviewer-measured keyboard weight without cable or wrist rest. The tested configuration is stated in the source note.

Not available

Not available

Connectivity

7 of 18 differ

Connections

USB (wired), 2.4 GHz, Bluetooth2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

USB (wired), 2.4 GHz, Bluetooth2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Wireless technology

Not available

Not available

Bluetooth

5.0 / 3.03Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 6 explicitly lists 5.0 and 3.0 with two advertised device names, AULA-F75 5.0KB and 3.0KB. Its BLE wording is not used to infer transport implementation.

5.22Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Bluetooth device slots

33Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026p 6 three pairing slots selected with Fn+1/2/3. Two advertised Bluetooth versions are not added into six slots.

35Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026p 18 explicitly pairs three Bluetooth hosts via Fn+1/2/3. Layer diagrams misprint BTH2 twice, p 16 correctly identifies BTH3.

Devices it can switch betweeniDistinct device connections available for switching. Do not infer this by adding wireless modes or paired Bluetooth slots.

Not available

Not available

Device switchingiControl used to switch between paired device hosts. Connection-mode and OS switches are described separately.

Keys3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Fn+1/2/3 chooses Bluetooth host. Rear switch selects connection mode. No total-device count is inferred by adding modes.

Keys5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026p 18 short Fn+1/2/3 selects Bluetooth host. Rear switch chooses connection mode, not Bluetooth host.

Receiver connector

Not available

USB-A5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Receiver storage in keyboard

Yes3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 3 explicitly concealed independent receiver storage. p 2 rear drawing identifies stored USB receiver.

Not available

Receiver shared with other devices

Not available

Not available

Wireless range

Not available

10m5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026p 10 Bluetooth operating distance within 10 m in open space. Not a 2.4 GHz guarantee.

Detachable cable

Yes2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

Yes5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Port on keyboard

USB-C2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

USB-C5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Cable plug

USB-A7Reviewparkablogs.com/index.php/content/aula-f75-keyboard-reviewRead 8 October 2026Exact manufacturer-provided F75/Reaper sample explicitly includes USB-A to USB-C charging cable. Current maker bundle confirms detachable Type-C cable. No cable length or material transferred.

Not available

Cable

Not available

Not available

Cable length

Not available

Not available

USB passthrough

No3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Complete p 2 interface drawing has one Type-C host port and a receiver-storage recess. Storage is not a downstream USB hub port.

Not available

Works withiSystems on which the keyboard works. Configuration software may have narrower system support.

Windows, macOS, Android3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 4-6 expressly Android, Windows and Mac modes via Fn+Q/W/E. Right-Ctrl is not a right-Command key in Mac mode per exact F75 review. No Linux/iOS compatibility is inferred.

macOS, Windows, Linux, iOS, Android2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Current exact specifications expressly support macOS, Windows, Linux. Manual separately names iOS and Android.5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Manual pp 19-20 names macOS/iOS and Windows/Android modes. Current exact maker specifications also explicitly list Linux. Some multimedia shortcuts vary by host.

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Not available

Li-Po2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Number of batteriesiNumber of replaceable AA or AAA cells required. Internal rechargeable battery packs are not counted here.

Not available

Not available

Battery capacity

4,000mAh2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Original F75 4000 mAh. F99 sample 8000 mAh and Max/Ultra battery claims are excluded. Rechargeable lithium is stated, but Li-ion versus Li-Po subtype is not established.

4,000mAh2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

User-replaceable battery

Not available

Not available

Battery life per mode (claimed)iMaker estimates. Store one published native duration unit per row: hours, days or months. Days and months describe calendar use including idle time, not continuous runtime. Do not convert calendar estimates into hours. Connection, lighting and polling rate are included only when published. Brightness, workload, screen status, sleep settings and up-to qualifiers go in the source note.

AAULA F75

Lighting	Hours (h)
On	17.5
Off	266.5

Source3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 3: about 17.5 h default lighting effect and 266.5 h all lights off. Connection, report rate, brightness level, activity/sleep workload, firmware and test method are unstated. No mode or continuous-use measurement is invented.

BKeychron K8 Ultra 8K

Connection	Lighting	Polling rate (Hz)	Hours (h)
2.4 GHz	Off	8,000	760
2.4 GHz	On	8,000	230

Source2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Maker up-to estimates in wireless 8K mode: 760 h backlight off, 230 h RGB at lowest brightness. Firmware version, active/idle workload and sleep policy unstated. Bluetooth 125 Hz is not the 8K condition. PC Gamer quotes 225 h on without a test, current maker 230 h takes precedence.

Longest battery life (claimed)iLongest maker estimate published in hours across the listed modes. Rows published in days or months do not contribute. Conditions can differ between products.

266.5h=CalculatedFrom Battery life per mode (claimed)

760h=CalculatedFrom Battery life per mode (claimed)

Battery life, lighting offiLongest maker estimate published in hours with lighting off. Calendar-day and calendar-month estimates are not converted and do not contribute.

266.5h=CalculatedFrom Battery life per mode (claimed)

760h=CalculatedFrom Battery life per mode (claimed)

Battery life, lighting oniLongest maker estimate published in hours with lighting enabled. Calendar-day and calendar-month estimates are not converted and do not contribute. Brightness and display conditions are stated in the source note.

17.5h=CalculatedFrom Battery life per mode (claimed)

230h=CalculatedFrom Battery life per mode (claimed)

Battery life, backlight on (claimed)iLongest maker up-to estimate published in calendar days with backlighting enabled. Includes idle time and the source-defined usage pattern, not continuous runtime. Brightness, workload, connection and sleep conditions remain in the table and source note. Hours and months are not converted.

Not available

Not available

Battery life, backlight off (claimed)iLongest maker up-to estimate published in calendar months with backlighting off. Includes idle time and the source-defined usage pattern, not continuous runtime. Workload, connection and sleep conditions remain in the table and source note. Hours and days are not converted.

Not available

Not available

Charging port

USB-C2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

USB-C5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Full charge timeiPublished time for a full charge. Approximate times remain qualified in the source note.

Not available

300min5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026pp 10 and 17 state around 5 hours. Approximate maker claim, not measured recharge. Charging up to 5 V 1 A, recommends 5 V 1 A adapter or USB 3.0.

Quick charge

Not available

Not available

Use while charging

Not available

Yes2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Solar charging

Not available

Not available

Battery indicator

LED, Key lighting3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026p 2 charging indicator strip. p 6 Fn+B displays battery level in wireless modes, unavailable while wired/charging. Exact F75/Reaper Tech4Gamers review identifies number-row key lighting as the percentage display.

LED, Reported to the OS5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Printed p 10 physical power LED indicates charging, full and low power. Battery shortcut in pp 13/15 does not specify its display mechanism, so key-lighting output is not inferred.6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Reviewer explicitly observes the keyboard battery percentage in Windows settings. This establishes OS reporting on the tested Windows setup.

Build

5 of 8 differ

Case material

ABS plastic6Reviewtech360.tv/epomaker-x-aula-f75-review-a-custom-keyboard-that-only-costs-under-us-70Read 8 October 2026Exact original F75 hands-on review explicitly ABS plastic body. Reaper configuration reviewed. No F75 Pro/Max case claim used.

CNC aluminum frame and ABS bottom case2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Plate material

Polycarbonate5Maker product pagecdn.shopify.com/s/files/1/0280/3931/5529/files/F75_Exploded_view.pngRead 8 October 2026Exact maker construction diagram labels PC Plate, distinct from PCBA and case. PC is polycarbonate plate material.

Steel2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Mount style

Gasket2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Maker calls gasket structure. Reviews describe the specific leaf-spring gasket implementation. This does not assert a separate metal leaf-spring-only mount.

Not available

Flex cuts in PCB

Yes2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Maker expressly 1.2 mm single-key slotted PCB, described as adding bounce. No PCB thickness field or inferred scan rate is stored.

Not available

Sound dampeningiDampening layers the maker or a review names. Foam whose position in the stack is not stated is foam. Films, pads and silicone parts that fit no other option are other.

Plate foam, Switch pads, Case foam, Silicone bottom, Other5Maker product pagecdn.shopify.com/s/files/1/0280/3931/5529/files/F75_Exploded_view.pngRead 8 October 2026Diagram identifies under-plate PO Silence Cotton, IXPE Switch Pad, PET Sound Enhancement Pad, under-PCB PO Bottom Cotton and Silicone Base Pad. Maker body calls two PORON foam layers. PET uses other, not PE sheet or assumed tape. No positions are borrowed from another model.

Plate foam, PCB foam, Case foam, Silicone bottom, Other2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Exact component list identifies EVA foam, IXPE between switches/PCB, EPDM foam, PET film, bottom-case PET film and silicone bottom pad. PET layers use other, not an assumed adhesive tape layer.

Typing anglesiKeyboard slope for each supported foot position, starting with the lowest. An adjustable-foot count does not establish angles. When the maker publishes only the angle with the feet out, that angle is stored alone.

Not available

Not available

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

1 of 7 differ

Backlight

RGB per key2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

RGB per key2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

LED position

North-facing2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Maker distinguishes south-facing LEDs for side-printed versions and north-facing for others. Exact Black reference uses top-printed keycaps. Side-printed/Pro configurations are not inherited.

South-facing2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Lighting zones

Not available

Not available

Brightness levelsiSelectable onboard brightness steps. The source note states whether the off position is included.

Not available

Not available

Side or underglow lighting

Not available

Not available

Lighting sensors

Not available

Not available

Lighting sync

Not available

Not available

Controls

7 of 12 differ

Media keysiPlayback controlled by separate buttons, an Fn layer or a multifunction knob/rocker. Volume controls are listed separately, and knob presses are excluded from the separate media-button count.

Fn layer3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 5 Windows Fn+F7/F8/F9 previous/play-pause/next. Mac/Android top row defaults to multimedia. Knob controls volume/mute, not track playback.

Fn layer5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Mac default top-row multimedia keys. Windows playback via Fn layer 3. These are shared function positions, not additional dedicated media buttons.

Separate media buttonsiSeparate physical buttons for playback or mute, counted once each. Fn shortcuts, macro buttons, knob presses and roller presses are excluded.

03Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Complete 80-key diagram and shortcut table have no separate playback buttons. Rotary press is excluded by field definition.

Not available

Volume control

Knob3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026

Keys5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026F11/F12 or Fn-layer equivalent. No knob.

Knobs

13Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026One physical circular knob in complete diagram p 2.

06Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Reviewer expressly notes no rotary volume knob.

Programmable knob

Not available

Not available

Knob press

Yes3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026p 6 short press mutes in Office mode or changes effect in Game mode. Long press selects Office/Game mode. This does not establish user reprogramming.

Not available

Separate macro keysiSeparate physical keys or buttons intended for macros. Excludes ordinary remappable keys, media buttons and a dedicated software-launch button.

Not available

Not available

Built-in screen

None10Reviewrtings.com/keyboard/reviews/aula/f99-f75Read 8 October 2026Public Differences table explicitly original F75 LCD screen No, with knob and 4000 mAh. F75 Max has screen and is excluded. Exact reference photo matches original screenless body.

Not available

Touchpad

Not available

Not available

Fingerprint reader

Not available

Not available

OS mode switch

Key combination3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Fn+Q Android, Fn+W Windows, Fn+E Mac. Rear toggle is connection mode, not OS.

Switch5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Windows key lock

Yes3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Fn+left Win locks/unlocks Windows key in Windows mode. Source describes no Win lock in Mac mode.

Not available

Software

6 of 10 differ

Software

EPOMAKER x AULA F75 Driver9Maker product pageepomaker.com/blogs/software/epomaker-x-aula-f75-driverRead 8 October 2026Exact current maker driver article identifies F75 ANSI/ISO-DE and provides Windows Software plus an official online driver.

Keychron Launcher2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Software runs on

Windows, Web9Maker product pageepomaker.com/blogs/software/epomaker-x-aula-f75-driverRead 8 October 2026Windows package AULA_F75_Setup_v2.zip and official browser driver aulaiso.aulastar.com. Current article requires desktop Chrome/Edge, excludes Safari/Firefox. Public official vendor bundle explicitly registers AULA_F75 alongside separate AULA_F75_D, so browser support is not an ISO-only assumption. No connected-device test or Linux native app claim.12Maker product pageaulaiso.aulastar.com/app-zr8CH2WO.jsRead 8 October 2026Current official browser driver public bundle explicitly registers AULA_F75 as an active wired keyboard device, separately from AULA_F75_D. This corroborates the exact maker driver article. No attached-device test, operating-system native application or firmware version is inferred.

Web2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Browser app in current Chrome/Edge/Opera. Configuration requires wired connection. Keyboard OS support is broader than software connection support.

Open firmware

Not available

ZMK2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Onboard memory

Not available

Yes5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026p 8 expressly says four layers of key settings on the keyboard and hardware OS toggle activates the appropriate base layer. No profile-slot count inferred.

Onboard profilesiProfiles stored on the keyboard, including fixed defaults when the maker counts them. Software-only profiles are excluded.

Not available

Not available

Macros

Yes8Reviewtech4gamers.com/epomaker-x-aula-f75-reviewRead 8 October 2026Exact F75/Reaper software section expressly records macros. Onboard persistence without software is not proved and omitted.

Yes2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Macros stored onboardiRecorded command sequences run from keyboard storage without the configuration app. Onboard lighting or remapping alone does not establish this.

Not available

Not available

Key remapping

Yes8Reviewtech4gamers.com/epomaker-x-aula-f75-reviewRead 8 October 2026Exact F75/Reaper software section expressly key remapping. Function-key and firmware restrictions are not independently measured.

Yes2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

LayersiTotal key mapping layers including the base layer. Lighting effect layers and profile slots are excluded.

312Maker product pageaulaiso.aulastar.com/app-zr8CH2WO.jsRead 8 October 2026Current official browser-driver model AULA_F75 explicitly offers Default, Fn1 and Fn2 key-mapping layers, three including the base. The separate AULA_F75_D model is not the evidence. These are configurable mapping layers, not Bluetooth slots, saved profile count or lighting effects. Manufacturer-declared current driver scope, firmware version and connected-device operation are not measured.

45Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026p 8 explicitly four layers stored on keyboard: 0/1 Mac, 2/3 Windows.

User firmware updates

Not available

Yes5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026pp 8-9 Keychron Launcher firmware flashing, wired mode required.

Ergonomics

0 of 4 differ

Wrist rest

None2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

None6Reviewpcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-reviewRead 8 October 2026Review recommends a separately obtained rest. Exact TechRadar review also expressly notes no supplied wrist support.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

1 of 6 differ

DimensionsiKeyboard body dimensions with fitted keycaps, without wrist rest and with feet folded. Any different measurement condition is stated in the source note. Width is the longest side, depth runs front to back and height is the thickness. Map by size when the maker's labels differ.

Width322.7Depth143.2Height43.1mm(12.7 × 5.6 × 1.7 in)3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026English p 3 reports 322.7(L) x 143.2(W) x 43.1(H) mm, ±1 mm. Keyboard long horizontal axis becomes schema width, front-to-back becomes depth. Feet position is unstated. The 1023 g mass explicitly includes wire/receiver and is excluded from standalone weight.

Width359.2Depth129.2mm(14.1 × 5.1 in)2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026Published width/depth only. Front 25.55 mm and back 31.28 mm explicitly exclude keycaps, so they are not stored as fitted-keycap height.

Dimensions with wrist rest

Not available

Not available

Keyboard weightiKeyboard without cable or wrist rest. Weights that include accessories cannot be stored here. A cable that cannot be removed is included. Replaceable batteries are included, as built-in batteries are.

Not available

Not available

Weight including wrist restiKeyboard plus supplied wrist rest, excluding packaging. The source note identifies any included cable.

Not available

Not available

Box dimensions

Not available

Not available

Box weightiOne retail package including its contents. A multi-unit shipping carton weight is excluded.

Not available

Not available

Certifications

None of 2 known

Platform certifications

Not available

Not available

Other certifications

Not available

Not available

In the box

3 of 3 differ

In the box

EPOMAKER x AULA F75 keyboard, Detachable Type-C cable, 2.4 GHz dongle, 2-in-1 switch and keycap puller, Multilingual user manual, Two extra switches2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Current maker Content List identifies six item groups including two extra switches. Older manuals/reviews can omit the spares. Contents may vary with package revision. No wrist rest is supplied in this reference package.

K8 Ultra 8K wireless mechanical keyboard, Type-C cable, Type-A to Type-C adapter, Keycap and switch puller, Manual, Quick Start Guide, Extra keycaps set, Extension adapter for receiver, Type-A 2.4 GHz receiver5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026Manual p 2 complete reference package list. Current maker box infographic additionally shows screwdriver/hex key, but these are absent from manual and excluded until exact supplied scope is reconciled.

Cables included

AAULA F75

Type	Count
Detachable Type-C cable	1

Source2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

BKeychron K8 Ultra 8K

Type	Count
Type-C cable	1

Source5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

Spare switches

22Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026Current EPOMAKER reference bundle explicitly 2x extra switches. Their switch type is not stated and not inferred.

Not available

Links

Not compared

Product page

epomaker.com/products/epomaker-aula-f752Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026

www.keychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard2Maker product pagekeychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboardRead 8 October 2026

Spec sheet

Not available

Not available

Manual

www.aulastar.com/uploads/soft/20241113/1-241113162Z3364.pdf3Owner's manualaulastar.com/uploads/soft/20241113/1-241113162Z3364.pdfRead 8 October 2026Original AULA WIND F75 manufacturer-hosted multilingual guide. English pages 2-6 are scanned and were visually inspected plus OCR. Only the standard F75 section is used.

cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdf5Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdfRead 8 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

0 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year2Maker product pageepomaker.com/products/epomaker-aula-f75Read 8 October 2026EPOMAKER direct-store product explicitly offers one-year warranty. This is the source-store policy, not every regional AULA retailer or statutory consumer rights.

1year9Maker product pagekeychron.com/pages/warrantyRead 8 October 2026Global/US maker policy gives twelve months unless purchase documents explicitly state otherwise. Exact K8 Ultra manual says defective components are replaced during warranty rather than the whole customizable keyboard. Regional purchase terms and statutory rights may differ.

Both are also in the API. Back to all keyboards.