Compatible Switches
PolyKybd uses 72 MX-compatible key switches (3-pin or 5-pin). The per-key display FPC cable threads through the LED slit of each switch, so the LED slit must be at least 7.5mm wide with no obstructions. The Actuation column is the operating force from the vendor’s listing.

Works without modification
Section titled “Works without modification”These switches have a sufficiently wide LED slit and need no modification:
| Switch | Type | Actuation |
|---|---|---|
| Aflion Tropical Waters | Linear | 68g |
| Ashkeebs Alexandrite | Linear | 58g |
| Blue Dusk Panda | Linear | 62g |
| BSUN × Unikeys Udon | Linear | 48g |
| CK × Haimu Pastel Lemon | Linear | 63.5g |
| CK × Haimu Pastel Thistle | Tactile | 63.5g |
| Gateron KS-9 (Pro) Blue | Clicky | 60g |
| Gateron KS-9 (Pro) Brown | Tactile | 55g |
| Gateron KS-9 (Pro) Green | Clicky | 80g |
| Gateron KS-9 (Pro) Red | Linear | 45g |
| Gateron KS-9 (Pro) Yellow | Linear | 50g |
| Geon Black | Tactile | 60g |
| Geon Clear | Linear | 60g |
| Geon Yellow | Linear | 63.5g |
| Glorious Panda | Tactile | 67g |
| GOJU Works × Tecsee Safety Switch | Linear | 65g |
| HMX Cthulhu | Linear | 45–50g |
| HMX Emo | Linear | 40g |
| HMX Hazelnut V2 | Linear | 43g |
| HMX K01 Light | Tactile | 45g |
| HMX Lotus | Linear | 62.5g |
| HMX Su Color Pink | Linear | 45g |
| HMX × Sillyworks Sonja | Linear | 45g |
| HMX × Unikeys Purple Dawn | Linear | 55g |
| Kailh Novel Keys Cream | Linear | 55g |
| Kailh Purple Potato | Tactile | 63.5g |
| Kailh × Domikey Knight Saber | Tactile | 42g |
| Keygeek M3 | Linear | 48g |
| LCET Grace | Linear | 50g |
| LCET Joker | Tactile | 58g |
| LCET Pink Queen | Tactile | 58g |
| LCET Sprout | Linear | 50g |
| MMD Holy Panda V3 | Tactile | 45g |
| Outemu (Dustproof) Black | Linear | 65g |
| Outemu (Dustproof) Blue | Clicky | 65g |
| Outemu (Dustproof) Brown | Tactile | 50g |
| Outemu (Dustproof) Red | Linear | 46g |
| Outemu Crystal Clear | Linear | 45g |
| Outemu Dust-proof Silver | Linear | 45g |
| Outemu Lemon | Silent Tactile | 35g |
| Outemu Panda | Tactile | 50g |
| Outemu Peach | Linear | 40g |
| Outemu Purple | Tactile | 45g |
| Outemu Ocean | Linear | 35g |
| Outemu Teal | Clicky | 70g |
| Owlab Neon | Linear | 62g |
| Tecsee Medium (low profile) | Linear & Tactile | 50g |
Works after minor modification
Section titled “Works after minor modification”Some switches have a plastic bar across the LED slit. Cut the bar away with a knife or flush cutters. This takes about 10 seconds per switch.


| Switch | Type | Actuation |
|---|---|---|
| Gateron KS-9 (Pro 2.0) Red | Linear | 45g |
| Gateron KS-9 (Pro 2.0) White | Linear | 35g |
| Geon HG (Haimu × Geon) Black | Linear | 65g |
| Geon HG (Haimu × Geon) White | Tactile | 65g |
| Geon HG (Haimu × Geon) Red | Silent Linear | 65g |
| Geon HG (Haimu × Geon) Yellow | Silent Tactile | 65g |
| Kailh BOX V2 Red | Linear | 40g |
| Kailh Box Cream | Linear | 45g |
| Kailh Pro Purple | Tactile | 50g |
| Kailh Pro Burgundy | Linear | 50g |
| Kailh Pro Light Green | Clicky | 50g |
| Kailh Pro Plum | Tactile | 70g |
| Kailh Speed Gold | Clicky | 50g |
| Kailh Speed Silver | Linear | 50g |
| Kailh Speed Bronze | Clicky | 50g |
| Kailh Speed Copper | Tactile | 40g |
| Kailh Speed Burnt Orange | Linear/Tactile | 70g |
| Kailh Speed Pro Heavy Army Green | Clicky | 70g |
| Kailh Speed Pro Heavy Yellow | Linear | 70g |
| Kailh Black | Linear | 60g |
| Kailh RGB Red | Linear | 45g |
| Kailh RGB Black | Linear | 60g |
| Kailh RGB Blue | Clicky | 50g |
| Kailh RGB Brown | Tactile | 50g |
Does not work
Section titled “Does not work”These switches have obstructions that cannot be cleared without damaging the switch:
| Switch | Reason |
|---|---|
| Cherry MX (most variants) | LED slit has a fixed internal post that blocks the FPC cable |
| Gateron G Pro 3.0 | Smaller LED slit opening |