Firstblood B21 vs Xinmeng A66
Get the Xinmeng A66 for hot-swappable and knob.
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Which one should you get?
Get the
Firstblood B21
Build quality in the bottom 30% of 65% boards under $100.
- Switches are soldered. Swapping them means soldering.
Get the
Xinmeng A66
Hot-swappable
Build quality in the bottom 45% of 65% boards under $100.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Firstblood B21
Xinmeng A66
Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
No
Yes
Switch changes without soldering
Knob
No
Yes
Weight
818 g
1,800 g
Heavier boards stay planted and lighter ones travel
Backlight
White
None
RGB for looks and low light rather than speed
- Firstblood B21
- Xinmeng A66
- Performance
- 5640
- Build quality
- 5362
- Productivity
- 5465
- Customizability
- 4666
- Portability
- 8388
- Layout size: 65%
- Case material: Aluminum
Firstblood B21 vs Xinmeng A66 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 21 specs differ
Firstblood B21
Xinmeng A66
Switch options
Hot-swappable
Mount style
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
N-key rollover
Mac & Windows
Released
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