Keyboards / Compare

AULA F75 vs Keychron K5 Max

A

Product A: AULA

F75

81 of 164 known

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B

Product B: Keychron

K5 Max

88 of 164 known

Change Keychron K5 Max

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All 164 fields

Every value links to where we found it.

Only differences

AAULA F75

BKeychron K5 Max

General

2 of 9 differ

Series

Not available

K Max1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

K5M-H1, K5M-H31Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact maker ProductGroup maps Black ANSI RGB hot-swap Red K5M-H1 and Brown K5M-H3 to stored GTINs. Entry is scoped to these two complete configurations. White and soldered configurations are excluded to prevent unsafe inheritance.

GTIN / EAN

Not available

4895248866992, 48952488670121Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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.

Available1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Current maker page offers this model. Backorders or a newer K5 Ultra do not establish discontinuation.

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

US1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Global and US maker storefront offers these exact ANSI configurations.

ColoursiThe maker's own colour names

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

Black1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

Enthusiast1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Layout

7 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

Full size1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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

ANSI1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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 English1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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.

1081Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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.

Windows, macOS1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Numpad

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

Yes2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

Function row

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

Yes2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Pages 12-15 include F1-F16. F13-F16 are ordinary function keys in the key row, not separate macro buttons.

Dedicated arrow keys

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

Yes2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

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

Not available

Full2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Pages 11-15 full layout has separate Home, End, Page Up and Page Down.

Key stagger

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

Row-staggered2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

Bottom row

Not available

Not available

Low profile

Not available

Yes1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Switches

13 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

Low-profile mechanical1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Switch feel

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

Linear, Tactile1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Switch maker

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

Gateron1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Switch models

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

Low Profile 2.0 Red, Low Profile 2.0 Brown1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Switch stem

Not available

MX cross1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact keyboard section names low-profile MX 2.0. Linked fitted-switch chart shows cross stems.6Reviewphandroid.com/2025/05/22/keychron-k5-max-a-solid-step-forward-for-low-profile-mechanical-keyboardsRead 23 October 2026Public review Brown sample explicitly says MX-style stem. Read in IAB after normal fetch was incomplete.

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.

50 to 55gf1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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.

1.7mm1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact maker fitted-switch chart has 1.7 mm with 0.4 mm tolerance for Red and Brown.

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.

3mm1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact maker fitted-switch chart has 3.0 mm with 0.2 mm tolerance for Red and Brown.

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

Yes1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Fitted-switch chart explicitly Yes for Red and Brown. Operating force differs by variant.

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

Not available

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

Not available

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.

Other1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Selected RGB hot-swap version. Its low-profile sockets fit Gateron and Keychron low-profile mechanical switches only. Low-profile optical and standard-profile MX switches are not supported. Other avoids implying standard 3-pin MX socket compatibility.

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.

Gateron and Keychron low-profile mechanical switches1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 20266Reviewphandroid.com/2025/05/22/keychron-k5-max-a-solid-step-forward-for-low-profile-mechanical-keyboardsRead 23 October 2026Hot-Swappable Convenience section explicitly requires Gateron or Keychron low-profile switches.

Stabilizers

Not available

Not available

Factory-lubed stabilizers

Not available

Yes3Reviewrtings.com/keyboard/reviews/keychron/k5-max-k1-max-k3-max-etcRead 23 October 2026Public Office verdict explicitly states factory pre-lubed switches and stabilizers. Intro identifies tested hardware as K5 Max with Gateron Low Profile 2.0 Red.

Keycaps

1 of 5 differ

Keycap material

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

PBT1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Legend method

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

Doubleshot1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Keycap profile

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

Low profile1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker calls profile LSA, low-profile spherical angled. Schema has no LSA option. Stored broad low_profile option.

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.

No1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker Low-Profile Double-Shot PBT section explicitly says non-backlight shine-through material.

Performance

3 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 K5 Max

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	1,000	Not available
2.4 GHz	1,000	Included USB-A 2.4 GHz receiver
Bluetooth	90	Not available

Source1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026SPECIFICATION states 1000 Hz wired and 2.4 GHz and 90 Hz Bluetooth.

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (2.4 GHz)

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (Bluetooth)

125Hz=CalculatedFrom Polling rate per connection

90Hz=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 K5 Max

Rollover
NKRO

Source1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker states NKRO for wireless and wired. Connection omitted because no per-transport result is specified.

Anti-ghosting

Not available

Not available

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

Measured

1 of 7 differ

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.

AAULA F75

Not available

BKeychron K5 Max

Connection	Update rate (Hz)
USB (wired)	1,000
2.4 GHz	1,000

Source3Reviewrtings.com/keyboard/reviews/keychron/k5-max-k1-max-k3-max-etcRead 23 October 2026Public Raw Performance verdict explicitly says effective update rate 1000 Hz wired and included receiver. Bought K5 Max Red sample. Page methodology v1.4.3. Firmware and other settings unstated. Numeric latency, force, travel, noise and mass are membership locked and are not stored. No latency is inferred from report rate.

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, Bluetooth1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

5.11Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

31Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

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.

Keys2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 18 Fn+1/2/3 select Bluetooth hosts. Connection-mode switch is separate.

Receiver connector

Not available

USB-A2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 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

10m2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 10 explicitly Bluetooth operating distance within 10 meters in open space. This is a maximum claim, not a tested range.

Detachable cable

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

Yes2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

Port on keyboard

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

USB-C2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 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.

Windows, macOS, Linux, iOS, Android1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker table lists Windows, macOS and Linux. Manual page 19 explicitly documents iOS and Android modes.

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Not available

Li-Po1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

2,000mAh1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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 K5 Max

Lighting	Hours (h)
Off	95
On	50

Source1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026CONNECTIVITY AND POWER lists around 95 hours with backlight off and around 50 hours RGB at lowest brightness. Transport, polling, workload and sleep conditions unstated. Older retailer 90-hour text is not substituted for current maker 95-hour claim.

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)

95h=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)

95h=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)

50h=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-C2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

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

Not available

180min2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Pages 10 and 17 say fully charged in around three hours. Approximate nominal duration.

Quick charge

Not available

Not available

Use while charging

Not available

Not available

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.

LED2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 10 power LED blinks red at low charge, stays red while charging and green when full.

Build

6 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.

ABS and aluminum frame1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

Not available

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.

Foam, position not stated1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker Interior Acoustic Foam names IXPE acoustic foam and latex foam without precise positions. Stored as foam. No invented placement.

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

3.37°, 4.36°, 6.56°1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact PHYSICAL UNIT table gives all three angles.

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

0 of 7 differ

Backlight

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

RGB per key1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Selected RGB configuration. Public RTINGS verdict independently describes full RGB lighting.

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.

North-facing1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker SPECIFICATION says switch face North-facing. Exact gallery and RGB section show north-facing lighting.

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

6 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 layer2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Pages 11-16 playback is on shared F-row keys. No separate media buttons. Maker twelve multimedia keys are shared function keys, not twelve separate 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.

02Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

Volume control

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

Keys2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

Knobs

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

02Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Complete layout and overview show no knob or roller.

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

02Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026F13-F16 above numpad are ordinary function keys shown in default layout. RTINGS calls them macro keys, but schema excludes ordinary remappable keys. No separate macro bank counted.

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.

None2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026

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.

Switch2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 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

5 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 Launcher / VIA1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Current maker page documents Launcher. Original manual page 6 documents web VIA in wired mode. Software configuration support is separate from keyboard OS compatibility.

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.

Web1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Open firmware

Not available

QMK, VIA1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Onboard memory

Not available

Not available

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.

Yes1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

Yes1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

42Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 6 lists Mac layers 0/1 and Windows layers 2/3. Not independent profile slots.

User firmware updates

Not available

Yes2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 9 gives exact firmware and QMK Toolbox flash instructions.

Ergonomics

0 of 4 differ

Wrist rest

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

None2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Page 2 complete package has no palm rest.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

2 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.

Width424Depth119Height23.5Front height18.2mm(16.7 × 4.7 × 0.9 × 0.7 in)1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026PHYSICAL UNIT explicitly fitted-keycap front height 18.2 and rear height 23.5 mm. Bare heights 7.8/14.7 mm excluded. Maker does not explicitly label foot condition for height table.

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

720g(1.6 lb)1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Maker keyboard body 720 g. Detachable cable and optional wrist rest excluded.

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.

K5 Max keyboard with Gateron Low Profile 2.0 switches and LSA PBT keycaps, Type-C cable, Extra keycaps set, Type-A to Type-C adapter, Type-A 2.4 GHz receiver, Manual, Quick start guide2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 October 2026Original maker manual page 2 list. Current maker package image adds receiver extension adapter and pullers and labels cable Type-A to Type-C. These conflict with original contents, so original manual list retained and cable host end omitted.

Cables included

AAULA F75

Type	Count
Detachable Type-C cable	1

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

BKeychron K5 Max

Type	Count
Type-C cable	1

Source2Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K5_Max_User_Manual.pdfRead 23 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-k5-max-qmk-via-wireless-custom-mechanical-keyboard1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026

Spec sheet

Not available

www.keychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboard1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 October 2026Exact maker online specification table. No separate datasheet found.

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_K5_Max_User_Manual.pdf1Maker product pagekeychron.com/products/keychron-k5-max-qmk-via-wireless-custom-mechanical-keyboardRead 23 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.

1year4Maker product pagekeychron.com/pages/warrantyRead 23 October 2026Global and US direct-store base term twelve months from delivery unless purchase documents state otherwise. K Max covered through defective-part replacement. Keycaps three months. Statutory rights excluded.

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