Keychron
Keychron K5 SE
Released 2022
Researched from maker specs and published sources. Last checked Oct 18, 2026.
K5 SE, from Keychron's store
The K5 SE Ultra-Slim is an aluminum, tray-mount full-size with LSA ABS keycaps, a 90-hour battery rating and about 673 g. Simpler and lighter than the K5.
Sources
Our take, based on research
A lighter aluminum K5 with optical options. Evidence is thin.
Overview
The K5 SE Ultra-Slim is a thinner, simpler K5. Keychron lists a 100% ANSI layout, Bluetooth plus wired at 1000 Hz, hot-swappable low-profile Gateron mechanical or Keychron optical switches, an aluminum tray-mount case, LSA ABS keycaps that are not shine-through, a four-level backlight, a 2000 mAh battery rated up to 90 hours, about 673 g and 435 x 120 mm. The page's product text refers to the K5 Version 2 platform and QMK.
No review of this SE model was found. Forbes' review of the K5 Pro and GameRevolution's review of the K5 Max cover the family's slim low-profile numpad concept, and Phandroid on the K5 Max says the full-size layout is bulky for travel.
Compared with the K5 Ultra Slim, it is lighter at 673 g against 770 g, with an all-aluminum case rather than aluminum and plastic.
Pros & Cons
- Aluminum case at about 673 g (maker)
- Optical or mechanical low-profile switch options
- Full-size numpad layout in a slim body
- Hot-swappable
- LSA keycaps
- Battery rated at only 90 hours
- ABS keycaps that are not shine-through
- Bluetooth plus wired only
- No review of this model was found
- Product page text is shared with the K5 version 2 line, so confirm firmware support before buying
Who Is This For?
- Office users who want a slim numpad keyboard with optical switch options
- Buyers who like an aluminum case
- People who do not need a dongle
- Gamers who need low-latency wireless
- Buyers who want PBT keycaps
- Travelers who need a compact board
Where to Buy
Dimensions
435 x 120 mm
Weight
673 g +/- 10 g
Case Material
Aluminum
Connectivity
Both
Plate Options
Case Colors
Software Support
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