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      • K1 Max ISO (80% | Wireless)
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      • V3 Max ISO (80% | Wirless)
      • V5 Max ISO (96% | Wirless)
      • V6 Max ISO (100% | Wirless)
      • B6 Pro (Ultra-Slim Wireless)
      • Q10 Max ISO (75% Alice | Wireless)
      • Q3 Max ISO (80% | Wireless | Full Metal)
      • K3 Max ISO (75% | Low Profile)
      • V10 Max (75% Alice | Wireless)
      • V6 Max (100% | Wireless)
      • V1 Max ISO (75% | Wireless)
      • Q1 Max ISO (75% | Wireless | Full Metal)
      • Q2 Max ISO (65% | Wireless)
    • Keyboards
      • Q HE Series (Magnetic Switch | Wireless)
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    • Artisan Keycaps
      • Cute Cows Aluminum Alloy
      • UFO Aluminum Alloy
      • Spacebar/ESC/Enter Key Aluminum Alloy
      • Silicone Kitty Paw Aluminum Alloy
      • Gamepad Controller Capslock Aluminum Alloy
      • Smile Aluminum Alloy
      • Cute Computer Aluminum Alloy
      • Metal Artisan Keycap
      • LSA Low Profile Metal Artisan Keycap
      • Metal Artisan Keycap - Love
      • Colorful Great Wave Metal Artisan Keycap
      • Magic Animal Resin Artisan Keycap
      • Christmas Aluminum Alloy Artisan Keycap
      • Daruma Doll Metal Artisan Keycap
      • Sword Aluminum Alloy Artisan Keycap
      • Family Computer Aluminum Alloy Artisan Keycap
      • Finger Guessing Game Artisan Keycap
      • Loveheart Resin Artisan Keycap
      • Astronaut Resin Artisan Keycap
      • Rainbows And Sunshine Resin Artisan Keycap
      • Three Pandas Resin Artisan Keycap
      • Hello Resin Artisan Keycap
      • Christmas Resin Artisan Keycap
      • Cute Fruit Resin Artisan Keycap
  • All Keyboards
    • All Keyboards
    • Q Max Series (Full Metal | Wireless)
      • Q1 Max (75%)
      • Q2 Max (65%)
      • Q3 Max (80% | TKL)
      • Q5 Max (96%)
      • Q6 Max (100%)
      • Q8 Max (65% | Alice)
      • Q10 Max (75% | Alice)
      • Q12 Max (96% | Southpaw)
      • Q60 Max (Special 60%)
      • Q65 Max (Special 65%)
      • Q0 Max (Numpad)
    • V Max (Wireless)
      • V1 Max (75% | Wireless)
      • V2 Max (65% | Wireless)
      • V3 Max (80% | Wireless)
      • V4 Max (60% | Wireless)
      • V5 Max (96% | Wireless)
      • V6 Max (100% | Wireless)
      • V10 Max (75% Alice | Wireless)
    • K Max Series
      • K1 Max (80% | Low Profile | QMK)
      • K3 Max (75% | Low Profile | QMK)
      • K5 Max (100% | Low Profile | QMK)
      • K7 Max (65% | Low Profile | QMK)
      • K11 Max (65% Alice | Low Profile)
      • K13 Max (Numpad 80% | Low Profile)
    • Q Pro Series (Full Metal | Wireless)
      • Q1 Pro (75%)
      • Q2 Pro (65%)
      • Q3 Pro (80%)
      • Q4 Pro (60%)
      • Q5 Pro (96%)
      • Q6 Pro (100%)
      • Q8 Pro (65% | Alice)
      • Q10 Pro (75% | Alice)
      • Q13 Pro (96% | Alice)
      • Q14 Pro (96% | Southpaw)
    • Q HE Series (Magnetic Switch | Wireless)
      • Q1 HE (75%)
    • Q Series (Full Metal | Wired)
      • Q1 Version 2 (75%)
      • Q2 (QMK | 65%)
      • Q3 (QMK | TKL 80%)
      • Q4 (QMK | 60%)
      • Q5 (QMK | 1800 Compact)
      • Q6 (QMK | 100%)
      • Q7 (QMK | 70%)
      • Q8 (65% | Alice)
      • Q9 (40%)
      • Q10 (75% | Alice)
      • Q11 (75% | Split Design)
      • Q12 (96% | Southpaw)
      • Q0 (Number Pad)
      • Q0 Plus (Numpad)
      • Q65 (Special 65%)
      • Q60 (Special 60%)
    • K Pro Series
      • K1 Pro (80% | Low Profile)
      • K3 Pro (75% | Low Profile)
      • K5 Pro (100% | Low Profile)
      • K7 Pro (65% | Low Profile)
      • K9 Pro (60% | Low Profile)
      • K11 Pro (65% | Alice)
      • K13 Pro (Numpad 80%)
      • K15 Pro (75% | Alice)
      • K17 Pro (96% | Low Profile)
      • K2 Pro (75%)
      • K4 Pro (96%)
      • K6 Pro (65%)
      • K8 Pro (80% TKL)
      • K10 Pro (100%)
      • K12 Pro (60%)
      • K14 Pro (70%)
    • K Series
      • K2 (75%)
      • K2 (75% | Non-Backlight)
      • K2 (75% | Hot-swappable)
      • K4 v2 (96%)
      • K6 (65%)
      • K6 (65% | Non-backlight)
      • K8 (80% | TKL)
      • K8 (80% | Non-Backlight)
      • K10 (Full Size)
      • K12 (60%)
      • K1 (80% | TKL)
      • K1 SE (80% | TKL)
      • K3 v2 (75%)
      • K3 v2 (75% | Non-backlight)
      • K5 (Full Size)
      • K5 SE (100%)
      • K7 (65%)
    • V Series (Wired)
      • V1 (75%)
      • V2 (65%)
      • V3 (80% | TKL)
      • V4 (60%)
      • V5 (1800 Compact)
      • V6 (100%)
      • V7 (70%)
      • V8 (65% | Alice)
      • V10 (75% | Alice)
    • B Pro Series (Ultra-Slim Wireless)
      • B6 Pro (100% | Full-Size)
    • C Series & S1
      • C1 (TKL | 80%)
      • C2 (100%)
      • C1 Pro (80% | QMK)
      • C2 Pro (100% | QMK)
      • C3 Pro (80% TKL)
      • S1 (75% | QMK)
    • Lemokey
      • L1 (75%)
      • L3 (80%)
      • P1 (75% | Wireless)
  • ISO Keyboards
    • ISO Keyboards
    • Q Max Series (Full Metal | QMK)
      • Q1 Max (75% | Wireless)
      • Q2 Max (65% | Wireless)
      • Q3 Max (80%)
      • Q5 Max (96% | Wireless)
      • Q6 Max (100% | Wireless)
      • Q10 Max (75% | Alice)
    • V Max Series (Wireless)
      • V1 Max (75% | Wireless)
      • V3 Max ISO (80% | Wireless)
      • V5 Max ISO (96% | Wireless)
      • V6 Max ISO (100% | Wireless)
    • K Max Series
      • K1 Max ISO (80% | Wireless)
      • K3 Max (75% | Low Profile)
      • K5 Max ISO (100% | Wireless)
    • Q Pro Series (Full Metal | QMK)
      • Q1 Pro (75% | Wireless)
      • Q2 Pro (65% | Wireless)
      • Q3 Pro (80% | Wireless)
      • Q5 Pro (96% | Wireless)
      • Q6 Pro (100% | Wireless)
    • Q Series (Full Metal | Wired)
      • Q1 (75%)
      • Q2 (65%)
      • Q3 (80%)
      • Q4 (60%)
      • Q5 (96%)
      • Q6 (100%)
      • Q7 (70%)
      • Q8 (65% | Alice)
      • Q10 (75% | Alice)
      • Q11 (75% | Split Design)
    • K Pro Series (QMK | Wireless)
      • K1 Pro (80% | Low Profile)
      • K3 Pro (75% | Low Profile)
      • K5 Pro (100% | Low Profile)
      • K7 Pro (65% | Low Profile)
      • K13 Pro (Numpad 80%)
      • K2 Pro (75%)
      • K4 Pro (96%)
      • K6 Pro (65%)
      • K8 Pro (80% | TKL)
      • K10 Pro (100%)
    • K Series
      • K2 ISO Keyboards
      • K3 ISO Keyboards
      • K4 ISO Keyboards
      • K6 ISO Keyboards
      • K8 ISO Keyboards
      • K10 ISO Keyboards
    • V Series (QMK)
      • V1 (75%)
      • V2 (65%)
      • V3 (80%)
      • V4 (60%)
      • V5 (96%)
      • V6 (100%)
      • V10 (75% | Alice)
  • Custom Keyboards
    • Custom Keyboards
    • Q Max Series (Full Metal |Wireless)
      • Q1 Max (75% | Wireless)
      • Q2 Max (65% | Wireless)
      • Q3 Max (80% | Wireless)
      • Q5 Max (96% | Wireless)
      • Q6 Max (100% | Wireless)
      • Q8 Max (65% | Alice)
      • Q10 Max (75% | Alice)
      • Q12 Max (96% | Southpaw)
      • Q60 Max (Special 60% | Wireless)
      • Q65 Max (Special 65% | Wireless)
      • Q0 Max (Numpad | Wireless)
    • V Max Series (Wireless)
      • V1 Max (75%)
      • V2 Max (65%)
      • V3 Max (80%)
      • V5 Max (96%)
      • V6 Max (100%)
      • V10 Max (75% | Alice)
    • K Max Series (Wireless)
      • K1 Max (80% | Low Profile)
      • K3 Max (75% | Low Profile)
      • K5 Max (100% | Low Profile)
      • K7 Max (65% | Low Profile)
      • K11 Max (65% Alice | Low Profile)
      • K13 Max (Numpad 80% | Low Profile)
    • Q Pro Series (Full Metal | Wireless)
      • Q1 Pro (75% | Wireless)
      • Q2 Pro (65% | Wireless)
      • Q3 Pro (80% | Wireless)
      • Q4 Pro (60% | Wireless)
      • Q5 Pro (96% | Wireless)
      • Q6 Pro (100% | Wireless)
      • Q8 Pro (65% Alice | Wireless)
      • Q10 Pro (75% Alice | Wireless)
      • Q13 Pro (96% Alice | Wireless)
      • Q14 Pro (96% Alice | Southpaw)
    • Q HE Series (Magnetic Switch | Wireless)
      • Q1 HE (75%)
    • Q Series (Full Metal | Wired)
      • Q1 Version2 (QMK | 75%)
      • Q2 (QMK | 65%)
      • Q3 (QMK | TKL 80%)
      • Q4 (QMK | 60%)
      • Q5 (QMK | 1800 Compact)
      • Q6 (QMK | 100%)
      • Q7 (QMK | 70%)
      • Q8 (QMK | 65% Alice)
      • Q9 (QMK | 40%)
      • Q10 (QMK | 75% Alice)
      • Q11 (75% | Split Design)
      • Q12 (96% | Southpad)
      • Q0 (Number Pad)
      • Q0 Plus (Numpad)
      • Q60 (Special 60%)
      • Q65 (Special 65%)
    • K Pro Series (Wireless)
      • K1 Pro (80% | Low Profile)
      • K3 Pro (75% | Low Profile)
      • K5 Pro (100% | Low Profile)
      • K7 Pro (65% | Low Profile)
      • K9 Pro (60% | Low Profile)
      • K11 Pro (65% Alice | Low Profile)
      • K13 Pro (Numpad 80% | Low Profile)
      • K15 Pro (75% | Alice)
      • K17 Pro (96% | Low Profile)
      • K2 Pro (75%)
      • K4 Pro (96%)
      • K6 Pro (65%)
      • K8 Pro (80%)
      • K10 Pro (100%)
      • K12 Pro (60%)
      • K14 Pro (70%)
    • V Series (Wired)
      • V1 (75%)
      • V2 (65%)
      • V3 (80%)
      • V4 (60%)
      • V5 (96%)
      • V6 (100%)
      • V7 (70%)
      • V8 (65% Alice)
      • V10 (75% Alice)
    • Lemokey
      • L1 (75% | Wireless)
      • L3 (80% | Wireless)
      • P1 (75% | Wireless)
    • C Pro Series (Wired)
      • C1 Pro (80% | QMK)
      • C2 Pro (100% | QMK)
      • C3 Pro (80%)
    • S Series (Wired)
      • S1 (75%)
  • Low Profile Keyboards
    • Low Profile Keyboards
    • K Max Series
      • K1 Max (80% | QMK)
      • K3 Max (75% | QMK)
      • K5 Max (100% | QMK)
      • K7 Max (65% | QMK)
      • K11 Max (65% Alice | QMK)
      • K13 Max (Numpad 80% | QMK)
    • K Pro Series
      • K1 Pro (80% | QMK)
      • K3 Pro (75% | QMK)
      • K5 Pro (100% | QMK)
      • K7 Pro (65% | QMK)
      • K9 Pro (60% | QMK)
      • K11 Pro (65% Alice | QMK)
      • K13 Pro (Numpad 80% | QMK)
      • K15 Pro (75% Alice | QMK)
      • K17 Pro (96% | QMK)
    • K Series
      • K1 (80% | TKL)
      • K1 SE (80% | TKL)
      • K3 v2 (75%)
      • K3 v2 (75% | Non-backlight)
      • K5 (Full Size)
      • K5 SE (Full Size)
      • K7 (65%)
    • S Series
      • S1 (75% | QMK)
  • Accessories
    • Accessories
    • Keycaps
      • Cherry Profile PBT Keycaps
      • OEM Dye-Sub PBT Keycap Set
      • OSA Double Shot PBT Keycap
      • Double Shot KSA PBT Keycap
      • Keychron Low Profile Keycaps
      • Keychron Special Keycaps
      • ISO & ANSI Keycaps
      • ISO ABS Full Set Keycap Set
      • Low Profile ISO ABS Full Set Keycap Set
    • Switches
      • Keychron K Pro Switch
      • Keychron Silent K Pro Switch
      • Cherry MX2A Switch Set
      • Haimu Switches
      • Other Keychron Switches
      • Other Cherry Switches
      • Switch Testers
    • Gateron Switches
      • Gateron North Pole Switch
      • Gateron Oil King Switch
      • Gateron KS-3 Milky Pro Switch
      • Gateron G Pro 3.0 Switch
      • Gateron Baby Kangaroo Tactile Switch
      • Low Profile Gateron Mechanical Switch
      • Gateron Switch Tester
      • Other Gateron Switches
      • Gateron Double-Rail Magnetic Switch
    • Kailh Switches
      • Kailh Box Switch Set
      • Kailh Deep Sea Silent Pro Box Switch
      • Kailh Super Speed Switch
      • Kailh Switch Tester
      • Other Kailh Switch
    • Palm Rests
      • Wooden Palm Rest
      • Resin Palm Rest
      • Silicone Palm Rest
    • Cables
      • Premium Coiled Aviator Cable
      • Coiled Aviator Cable
      • Double-Sleeved Geek Cable
    • Carrying Cases
      • Keyboard Carrying Case
      • Keyboard Travel Pouch
    • Plates
      • Q Pro Series Plates
      • Q Series Plates
      • K Pro Series Plate
      • V Series Plates
      • Q1 HE Brass Plate
    • Artisan Keycaps
      • Metal Artisan Keycaps
      • Resin Artisan Keycaps
    • Acoustic Upgrade Kits
      • Keychron Q1 & Q1 Pro Acoustic Upgrade Kit
      • Keychron Q1 HE Acoustic Upgrade Kit
      • Keychron Q2 & Q2 Pro Acoustic Upgrade Kit
      • Keychron Q3 Pro SE Acoustic Upgrade Kit
      • Keychron Q5 Pro Acoustic Upgrade Kit
      • Keychron Q8 & Q8 Pro Acoustic Upgrade Kit
      • Keychron Q10 Acoustic Upgrade Kit
      • Keychron Q10 Pro Acoustic Upgrade Kit
      • Keychron Q13 Pro Acoustic Upgrade Kit
      • Keychron Q14 Pro Acoustic Upgrade Kit
    • Other Accessories
      • Gold Plated PCB Mounted Stabilizers
      • Klube Lubricant
      • Gateron Switch Opener
      • Gateron Switch Puller (Version 2)
      • Aluminum Knob
      • USB Bluetooth Adapter
      • Kailh Switch Storage Box
      • Desk Mat
      • Mouse Pad
      • Keyboard Dust Cover
      • Gold-Plated Spring
      • Camo Switch Top Case
      • Camo Switch Bottom Case
      • Switch Tester Keychain

Keychron Firmware for K4

Keychron K4 Version 1

Keychron K4 Version 2 

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Keychron designs and produces custom and wireless productive computer peripherals for Mac, Windows, iPhone and Android.

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