Redragon K668: problems, parts and running costs
Checked: 2026-10-08
Summary
Owners most often report Windows-only Redragon software that can leave the keyboard unresponsive, stock Red switches prone to breaking, ABS keycaps that shine with use, and a full-size footprint with no wireless option. There are no consumables; replacement switches run about $5-20 for a set of 108. At $49.99 direct from Redragonshop it is strong value at $40 or less and good up to $55; above about $60 the advantage narrows.
Common problems and fixes
- Software can leave the keyboard unresponsive (“bricked”) — Redragon’s community post documents keyboards becoming unresponsive after software install or update; fixes are reinstallation, firmware update and different USB ports. Redragon’s 2-year warranty covers manufacturing defects; software issues are handled through support. [13][3]
- Stock Red switches prone to breaking — some users report the stock Red switches break; swapping to aftermarket 3-pin or 5-pin switches is the workaround, and the hot-swap sockets make that a user task. Replacement under the 2-year warranty applies to defective switches. [14][1]
- Windows-only software and no Linux/VIA/QMK — configuration requires Redragon’s Windows software; the 4 hotkeys can only be remapped in software, not on the board. One RedFlagDeals owner returned the keyboard for that reason. Not a warranty issue. [13][12][1]
- ABS keycaps shine with use — the single-shot ABS keycaps develop shine; aftermarket keycaps are the fix, and they must clear the north-facing LEDs. Wear is not covered by warranty. [6][7]
- Full-size footprint and wired only — the board takes significant desk space and has no Bluetooth or 2.4 GHz option. [5][6][8]
- Hotkeys not remappable without software — the 4 hotkeys default to mute, calculator, screen lock and desktop and need software to change. [12][1]
Parts and consumables
- Replacement switches (3-pin/5-pin) — about $5-20 for a set of 108 depending on brand; owners report swapping in Gateron Yellows, Kailh Box Reds and other 3-pin/5-pin switches. [10][4][7]
- Stock spare Red switches (4 included) — 4 spare Red switches ship in the box as minimal backup. [1]
Yearly running cost
No recurring cost is reported beyond the keyboard itself. There are no consumables and no subscription. The only possible spend is replacement switches at about $5-20 for a set of 108 if a switch breaks, plus optional aftermarket keycaps. Not enough data for an annual figure or electricity cost.
When it is a good buy
- Redragonshop lists the K668 at $49.99 regular; a YouTube reviewer bought one at $55 and noted a $35 sale; a March 2024 RedFlagDeals deal was $71.99 CAD (about $53 USD). [1][7][12]
- At $40 or less: strong value for hot-swap sockets, full-size layout, 19 RGB presets, sound-dampening foam and two keycap sets. [1]
- $41-55: still good value, especially for users who want hot-swap capability and a full-size layout. [1]
- $56-70: fair; compare against boards with PBT keycaps, better software or wireless options. [1]
- Above $70: weak value; better build, software or wireless options become available. [1]
- No specific competing models are named in the sources; compare against other budget mechanical keyboards with PBT keycaps, better software or wireless connectivity.