Which is better for gaming?

The Q4 has a 1000 Hz polling rate and a rigid aluminum case, which suits fast play. The CSTM80 TKL gives you arrow keys and a function row, which many games use. Pick the Q4 for a small footprint, the CSTM80 for more keys.

Which has the better build quality?

The Q4 uses a full CNC 6063 aluminum body with a double-gasket mount and steel plate. The CSTM80's case material is not stated in the listing. On known specs, the Q4 has the stronger build.

Do I lose arrow keys with the Q4?

Yes. The Q4 is a 60% layout with no arrow cluster or function row. You can remap arrows onto a layer through QMK, but they are not physical keys.

Is the Q4 worth the extra over the CSTM80?

The Q4 is the only one with a stated price: $77.00 at eBay as of November 7, 2026, and it hit $55.96 on November 6, 2026. Without a CSTM80 price, compare at checkout; the Q4's aluminum case and gasket mount justify its price.

Which is easier to customize?

Both are hot-swappable. The CSTM80 supports QMK, VIA and Vial, which many users find quicker for remapping. The Q4 uses QMK, but buyers report the Keychron Launcher web app does not support the Q4.

Which takes up less desk space?

The Q4. Its 60% layout is much smaller than the CSTM80's tenkeyless body, which leaves more room for mouse movement.

DROP CSTM80 TKL Mechanical Keyboard vs Keychron Q4 QMK Custom Mechanical Keyboard

Buy the Keychron Q4 if you want a compact 60% board with a full aluminum case and a lower price: $77.00 at eBay as of November 7, 2026. Buy the Drop CSTM80 TKL if you need arrow keys and a function row for daily typing and gaming, at the cost of a larger footprint. The Q4's lowest recent price was $55.96 on November 6, 2026, so it can drop well under the CSTM80.

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