Keyboards / Compare

AULA F75 Max vs Keychron K3 HE

A

Product A: AULA

F75 Max

83 of 164 known

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Compare the Keychron K3 HE with

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B

Product B: Keychron

K3 HE

91 of 164 known

Change Keychron K3 HE

Compare the AULA F75 Max with

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All 164 fields

Every value links to where we found it.

Only differences

AAULA F75 Max

BKeychron K3 HE

General

5 of 9 differ

Series

Not available

K HE1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

AULA-F75MAX-SP-BK-Reaper, AULA-F75MAX-WHBL-Reaper, AULA-F75MAX-PKWH-Reaper, AULA-F75MAX-CP-Reaper, AULA-F75MAX-BT-Reaper2Maker product pageepomaker.com/products/epomaker-x-aula-f75-max.jsRead 11 October 2026SKUs of the five ANSI options with the LEOBOG Reaper switch. Black and White Blue carry barcodes in the public product payload.

K3H-F1, K3H-F1-BO, K3H-F1-DE, K3H-F1-UK, K3H-Q11Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

GTIN / EAN

717097417191, 7170974171842Maker product pageepomaker.com/products/epomaker-x-aula-f75-max.jsRead 11 October 2026Barcodes of the two ANSI SKUs that have one.

4894979045614, 4894979067913, 4894979067906, 4894979066121, 48949790456212Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboard.jsonRead 14 October 2026Barcodes of the five store variants, K3H-F1, K3H-Q1, K3H-F1-BO, K3H-F1-DE and K3H-F1-UK.

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

Not available

February 20267Press articlemechkeys.com/ja/blogs/news/keychron-launches-k3-he-and-k3-ultra-low-profile-wireless-keyboards-on-february-12Read 14 October 2026Article dated 2026-02-10 reports the announcement and a February 12 launch date.

Status

Available1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Page is live and the ANSI Black, White Blue, Pink White and Black Transparent options are in stock on the access date. Caramel Pudding shows as unavailable.

Available1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

$119.991Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 20265Reviewtechradar.com/computing/keyboards/keychron-k3-he-reviewRead 14 October 2026Review published 2026-05-30 lists $119.99 and says the board is available now in black and white. The maker store shows the same price.

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.

US1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Store page with USD prices. The ISO-DE layout options and its separate driver are not covered.

Not available

ColoursiThe maker's own colour names

Black, White Blue, Pink White, Caramel Pudding, Black Transparent1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026ANSI colour options of the maker store selector. ISO-DE options are excluded.

Black, White1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Black and White. The ISO layouts are sold in Black only.

Segment

Gaming1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Maker text calls it a versatile gaming keyboard and tags it Gaming. The AULA page says suitable for gaming, esports and office use.

Gaming1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Complete1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Fully assembled with fitted LEOBOG Reaper switches and keycaps.

Complete1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Layout

5 of 12 differ

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

75 %1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

75 %1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

ANSI1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

ANSI, ISO1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Regional layouts

ANSI1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: 75 percent ANSI US layout.

ANSI, ISO-Nordic, ISO-German, ISO-UK1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026ISO-Nordic is listed on the page as a pre-order that ships later than the other layouts.

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.

801Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: 80 keys, 1 metal knob and 1 TFT screen. Counted on the manual diagram: 13 + 15 + 15 + 14 + 14 + 9 = 80, with the knob and screen outside the count.

843Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Specification page states number of keys 84. This is the ANSI count. ISO key count is not published.

Key legends for

Windows3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Diagram shows Win and Alt legends. Mac mode changes behaviour but not the printed legends.

macOS, Windows1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Numpad

No3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Layout diagram on page 1 has no numeric keypad.

No1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Function row

Yes3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Layout diagram has F1 to F12.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Dedicated arrow keys

Yes3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Layout diagram shows four separate arrow keys.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Compact3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Diagram has dedicated Delete, Page Up, Page Down and End keys. Home and Insert are on Fn + End and Fn + Del. This is a partial cluster.

Compact1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Key stagger

Row-staggered3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Diagram shows staggered typing rows.

Row-staggered1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Bottom row

Not available

Not available

Low profile

No1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Cherry profile PBT keycaps on standard MX-style hot-swap sockets. The maker describes a 2 cm low front height of the case, not low-profile switches.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Switches

20 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.

Mechanical1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Mechanical LEOBOG Reaper linear switches with a POM stem.

Magnetic (Hall effect)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says the Ultra-Fast Lime low-profile magnetic switches are powered by Hall Effect sensing.

Switch feel

Linear1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Linear6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer describes pre-lubed POM linear switches. The maker page does not name the feel.

Switch maker

LEOBOG1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Keychron1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Switch models

Reaper1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications list the LEOBOG Reaper mechanical switch, a factory-lubed linear switch with a POM stem.

Keychron Ultra-Fast Lime Low-Profile Magnetic Switch1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Switch stem

Not available

Not available

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 11 October 2026Maker Reaper sheet: actuation 45 plus or minus 3 gf, with a separate initial force of 36 gf. The F75 Max page also says trigger force 45 plus or minus 3 gf.

Not available

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 11 October 2026Maker Reaper sheet and F75 Max page: bottom-out force 55 plus or minus 3 gf.

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 11 October 2026Maker Reaper sheet: pre-travel 1.8 plus or minus 0.3 mm. The F75 Max page table shifts its labels, but the value 1.8 plus or minus 0.3 mm matches.

Not available

Total travel

3.6mm4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 11 October 2026Maker Reaper sheet and F75 Max page: total travel 3.6 plus or minus 0.3 mm.

Not available

Rated keystrokes

60million4Maker product pageepomaker.com/products/leobog-reaper-switch-setRead 11 October 2026Maker Reaper sheet: 60 million strokes.

Not available

Factory-lubed switches

Yes1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says the switches are pre-lubed.

Adjustable actuation

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Not available

Min0.2Max2.9mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as 0.2 to 2.9 mm. TechRadar reports 0.2 to 2.8 mm, the maker value is used.

Actuation stepiSmallest documented increment between selectable actuation settings.

Not available

0.1mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says actuation points can be adjusted from 0.2 to 2.9 mm with 0.1 mm sensitivity.

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

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says each key can be customized.

Rapid trigger

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Not available

0.1mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table lists Rapid Trigger sensitivity 0.1 mm.

Multi-action keys

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Dynamic keystrokes, up to four actions per key by press depth.

SOCD handling

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Last Key Priority (LKP) and Snap Click, both disabled by default.

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

Not available

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Analog Mode gives variable gamepad-style input. Listed as Gamepad Analog in the low-profile series comparison.

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

5-pin1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: hot swappable, 3/5-pin mechanical switches. Stored as 5-pin sockets that accept 3-pin switches.

Magnetic1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table: compatible with Keychron Ultra-Fast Lime Low-Profile magnetic switch only.

Compatible switches

3-pin and 5-pin mechanical switches1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Keychron Ultra-Fast Lime Low-Profile magnetic switch only1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Stabilizers

Plate-mounted1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: plate-mount stabilizer. Maker text adds that screw-in stabilizers can be swapped in.

Plate-mounted1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table lists a plate-mounted stabilizer.

Factory-lubed stabilizers

Yes1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Maker text: plate-mount stabilizers come pre-lubed and tuned.

Not available

Keycaps

2 of 5 differ

Keycap material

PBT1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

PBT1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Legend method

Doubleshot1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Doubleshot1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Keycap profile

Cherry1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: Cherry profile PBT keycaps, double-shot.

Low profile1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026LSA, low-profile spherical-angled keycaps.

Keycap thickness

Not available

Not available

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

Not available

No1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Performance

2 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 Max

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

Source1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: 1000 Hz on USB and 2.4 GHz, 125 Hz on Bluetooth 5.0. The dongle is in the box.

BKeychron K3 HE

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

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 20261000 Hz in wired and 2.4 GHz modes, 125 Hz over 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

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.

3ms1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: latency 3 ms (USB), 7 ms (2.4 GHz wireless) and 18 ms (Bluetooth 5.0). Stored as the USB figure. Test method is not stated.

Not available

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

AAULA F75 Max

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

Source1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: N-key rollover. The manual states NKRO in all modes.

BKeychron K3 HE

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

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page lists N-key rollover as Yes for wireless and wired. Wireless covers both 2.4 GHz and Bluetooth.

Anti-ghosting

Not available

Not available

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

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, Bluetooth1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

USB (wired), 2.4 GHz, Bluetooth1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Wireless technology

Not available

Not available

Bluetooth

5.01Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: Bluetooth 5.0.

5.21Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Bluetooth device slots

33Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: AULA F75 Max-1, -2 and -3 pairing slots.

31Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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 manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Fn + 1, 2 or 3 pairs and switches between three Bluetooth devices. The connection mode is chosen with a side switch.

Keys3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Fn+1, Fn+2 and Fn+3 select Bluetooth hosts.

Receiver connector

Not available

USB-A1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Receiver storage in keyboard

Yes5Reviewxiaomitoday.com/epomaker-x-aula-f75-max-review-wireless-mechanical-keyboard-with-tft-screen-and-knobRead 11 October 2026Review dated 30 August 2025: a magnetic storage slot on the back holds the wireless receiver.

Not available

Receiver shared with other devices

Not available

Not available

Wireless range

Not available

10m3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Bluetooth operating distance within 10 meters in open space.

Detachable cable

Yes3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: USB-C cable is plugged into the keyboard.

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Charging and wired mode use a Type-C cable plugged into the keyboard port.

Port on keyboard

USB-C3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: plug the USB-C cable for wired mode.

USB-C1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Cable plug

Not available

USB-C6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer lists a USB-C cable plus USB-A-to-C and C-to-A adapters. The manual lists a Type-C cable and a Type-A to Type-C adapter.

Cable

Not available

Braided6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer describes a braided right-angled USB-C cable.

Cable length

Not available

Not available

USB passthrough

Not available

Not available

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

Windows, macOS, Linux, Android, iOS1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: Mac, Win, Android and Linux. The manual lists Windows, Mac, Android and iOS. Both lists are kept.

Windows, macOS, Linux1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Not available

Li-Po1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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

4,000mAh1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

2,600mAh1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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 Max

Lighting	Hours (h)
On	30.5
Off	80

Source1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: 30.5 hours with the backlight on and 80 hours with the backlight off. The manual says at least those values. Connection and brightness are not stated.

BKeychron K3 HE

Hours (h)
55

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as up to 55 hours, lab test results may vary. Connection, lighting and polling rate are not stated.

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.

80h=CalculatedFrom Battery life per mode (claimed)

55h=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.

80h=CalculatedFrom Battery life per mode (claimed)

Not available

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.

30.5h=CalculatedFrom Battery life per mode (claimed)

Not available

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-C3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: the battery charges through the USB-C cable.

USB-C1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Not available

228min3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Around 3.8 hours. Manual recommends 5 V 1 A or USB 3.0.

Quick charge

Not available

Not available

Use while charging

Yes3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: the battery charges under either wireless or wired mode, as long as the keyboard is plugged.

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Manual says the keyboard can be charged in 2.4GHz, cable and Bluetooth mode.

Solar charging

Not available

Not available

Battery indicator

LED, Built-in display3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 3: light indicators also show on the screen, so LED and display.

LED3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Power indicator LED blinks red when low, stays red while charging and turns green when full. A Batt key is listed on layers 1 and 3.

Build

5 of 8 differ

Case material

ABS plastic1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: ABS plastic.

Aluminum and wood frame with ABS plastic bottom case1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Body material aluminum plus wood, bottom case ABS plastic.

Plate material

Polycarbonate1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: PC plastic plate with partial flex-cut. The manual says PC flex-cuts.

Aluminium1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Mount style

Gasket1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: gasket mount.

Tray1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Flex cuts in PCB

Not available

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.

Switch pads, Case foam, Silicone bottom, Other1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications list sandwich pad, IXPE switch pad, PET sound-enhancement pad, bottom foam and bottom silicone. Stored as switch pads, case foam, silicone bottom and other. The sandwich pad position is not stated and the PET pad is stored as other.

Case foam, Silicone bottom, Foam, position not stated, Other1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Sound-absorbing foam of unstated position, bottom case acoustic foam, silicone bottom pad and PET film. Foam of unstated position is stored as foam and PET film as other.

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

2°, 4.5°, 7.5°1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table angle 2, 4.5 and 7.5 degrees, feet height 2 mm.

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

1 of 7 differ

Backlight

RGB per key1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: south-facing, per-key RGB.

RGB per key1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

LED position

South-facing1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

North-facing1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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

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 manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 2: media functions on the F row in Mac mode and on Fn + F7 to F10 in Windows mode. Shared keys, not separate buttons.

Fn layer3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Media functions sit on the F-row in the Mac layer and on the Fn layer for Windows.

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 manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Diagram and shortcut table show no separate media buttons.

Not available

Volume control

Knob1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Maker text: the volume knob tunes sound, RGB and backlight.

Not available

Knobs

11Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: one metal knob.

03Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Keyboard overview lists no knob.

Programmable knob

Not available

Not available

Knob press

Not available

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

LCD1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications list a TFT screen. The manual gives 0.85 inch. Stored as LCD.

Not available

Touchpad

Not available

Not available

Fingerprint reader

Not available

Not available

OS mode switch

Not available

Switch3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Win/Android and Mac/iOS toggle on the left side.

Windows key lock

Yes3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 2: Fn + Win locks the Windows key.

Not available

Software

5 of 10 differ

Software

AULA Driver1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Keychron Launcher1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Software runs on

Windows1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Product downloads: driver, only Windows is supported.

Web1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Open firmware

Not available

QMK1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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

Yes1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Maker text: key remapping and macros in the software.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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

Yes1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Maker text: key remapping and macros in the software.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

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

Not available

43Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Four layers. Layers 0 and 1 for Mac, layers 2 and 3 for Windows.

User firmware updates

Not available

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Firmware update through the Keychron Launcher web app in wired mode.

Ergonomics

0 of 4 differ

Wrist rest

None1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026No wrist rest in the content list.

None3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026No wrist rest in the box list. A silicone palm rest is a separate accessory.

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.

Width327.69Depth143.17Height43.26Front height20mm(12.9 × 5.6 × 1.7 × 0.8 in)1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Manual: 327.69 x 143.17 x 43.26 mm plus or minus 0.5 mm. Technical specifications: 32.8 x 14.3 x 4.4 cm and front height 20 mm. Foot condition is not stated.

Width318.62Depth126Height25.4Front height22mm(12.5 × 5 × 1 × 0.9 in)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Size 318.62 x 126 mm. Front height 22.0 mm and back height 25.4 mm, both including keycaps. Back height is stored as 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.

960g(2.1 lb)1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Technical specifications: keyboard weight 0.96 kg. The manual says net 960 g. The shop shipping weight of 1300 g is a package value and is not used.

575g(1.3 lb)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as 575 g. The configuration is not stated.

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

1 of 3 differ

In the box

F75 Max keyboard, 2.4G dongle, Type-C cable, 2-in-1 keycap and switch puller, User manual1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Content list on the product page.

1x Fully Assembled Keyboard, 1x Type-C Cable, 1x Type-A to Type-C Adapter, 1x Type-A 2.4GHz Receiver, 1x Extension Adapter For Receiver, 1x Keycap & Switch Puller, 1x Screwdriver3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Fully assembled version package list.

Cables included

AAULA F75 Max

Type	Count
Type-C cable	1

Source1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026Content list: one Type-C cable. Host connector type is not stated.

BKeychron K3 HE

Type	Count
Type-C cable	1

Source3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026

Spare switches

Not available

Not available

Links

Not compared

Product page

epomaker.com/products/epomaker-x-aula-f75-max1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

www.keychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboard1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Spec sheet

epomaker.com/products/epomaker-x-aula-f75-max1Maker product pageepomaker.com/products/epomaker-x-aula-f75-maxRead 11 October 2026

Not available

Manual

epomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdf3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026English quick start guide, pages 1 to 4 of the 28-page multilingual PDF. The PDF is scanned images, so values were read from the page images.

cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdf1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 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.

1year3Owner's manualepomaker.com/cdn/shop/files/EPOMAKER_AULA_F75_MAX_manual.pdfRead 11 October 2026Page 4: one year warranty for products bought from the maker store. Market is the store.

1year4Maker product pagehelp-center.keychron.com/en-us/article/360021443594-how-long-is-the-keyboard-warranty-forRead 14 October 202612 months global warranty.

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