GMMK 3 Pro in UK ISO
75% · ISO · Tactile
- Thocky
Mid-range
Updated . Sound tags are editorial, not measured.
Several of the kits in our catalogue are ANSI only. The GMMK 3 Pro also comes in UK ISO, with the tall Enter and the short left Shift that a British keyboard has, so you do not have to relearn where the keys are. The keycaps have to be ISO too, which narrows the choice, and this set is one that is.
It is a 75% with an aluminium case and plate and a gasket mount. Cherry MX2A Browns are light tactiles with a small bump near the top of the press, refreshed with factory lube, so the board stays on the lighter side of a custom build.
Compatibility
All 5 parts fit
Checked for mounting, layout, switch fit, stabilizers and keycap coverage.
- You need about 85 switches: 9 packs of 10 leaves a few spares.
Estimated total
≈£315
All 5 parts priced. Some prices are converted from other currencies (≈). List prices, or the lowest shop price we have seen. Check each shop for today's price.
Parts

£189.99
A modular aluminium 75% with an aluminium plate, a programmable knob and 3- or 5-pin hot-swap sockets, sold in UK ISO as well as ANSI. It is wired only and uses Glorious's own CORE software rather than QMK.

£5.70
per pack, 9 packs needed
A light tactile, 45 g to actuate, with a small bump near the top of the press. MX2A adds factory lube and better stem stability over the original Brown.

≈£30
A Cherry-profile dye-sub PBT set sold in a UK ISO version, and Keychron says it has what a UK ISO board needs. It is a low-cost way to get UK legends on a custom board.
£18.50
Glorious's listing does not say what stabilizers the kit includes, so we have added a set. TX AP stems have a POM shell and a TPU/POM core meant to reduce wire rattle.

£24.99
A braided USB-C cable with a coiled section and a detachable aviator connector. It is a looks upgrade on top of the cable in the box.
Before you buy
- TX AP stabilizers come in 1.2 mm and 1.6 mm PCB versions. Check the kit's PCB thickness before you order.
- We could not confirm which stabilizers come with the GMMK 3 Pro, so check whether you need these at all.
- We have not confirmed that the GMMK 3 Pro has a socket to match the aviator connector. Check before you buy the cable.
- MX2A Browns are sold in 3-pin and 5-pin versions. The specs here are for the 5-pin version.
Where to buy
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Glorious GMMK 3 PRO Barebones (75%)
Cherry MX2A Brown
Keychron ISO Cherry Profile Dye-Sub PBT Keycap Set – White Mint
TX Keyboards TX AP Screw-in Stabilisers
Keychron Coiled Aviator Cable