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94
Overall/ Value
94.0Build Quality
94.3Customizability
94.8Performance
63.2Productivity
93.9Portability
86.8$160
KBDFans Agar Mini
View on KBDfans
40%,
Hotswap,
Wireless,
Wired,
VIA,
VIAL,
QMK,
Alu case,
Gasket Mount
Open Filters
Found 43 products
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95
Overall/ Value
94.9Build Quality
91.0Customizability
97.1Performance
65.9Productivity
94.5Portability
70.4$59
Sponsored
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$84
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86
Overall/ Value
86.4Build Quality
79.7Customizability
86.4Performance
74.6Productivity
88.0Portability
86.7$115
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82
Overall/ Value
82.0Build Quality
82.9Customizability
84.4Performance
61.3Productivity
69.6Portability
83.9$84
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82
Overall/ Value
81.8Build Quality
75.8Customizability
86.5Performance
74.0Productivity
62.6Portability
83.9$79
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81
Overall/ Value
81.3Build Quality
82.3Customizability
86.6Performance
60.8Productivity
72.8Portability
88.7$193
![[In Stock] GuangQi40 40% Mechanical Keyboard](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/3_f9db0f02-e41b-4619-910e-31d54b65865c.png?v=1735804775&width=3840&quality=75)
Dwarf Wangchuan GuangQi40
View on Velocifire
40%,
Hotswap,
Wireless,
Wired,
VIA,
QMK,
Alu case,
Gasket Mount
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77
Overall/ Value
76.7Build Quality
78.4Customizability
82.8Performance
54.2Productivity
71.3Portability
81.7$209
![[In Stock] Sirius Manta Low switch 40% Bluetooth Dual Mode Mechanical Keyboard Kit](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/untitled.159.jpg?v=1761717751&width=3840&quality=75)
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75
Overall/ Value
74.6Build Quality
78.5Customizability
78.3Performance
47.9Productivity
58.6Portability
62.4$85
Sponsored
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$49
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71
Overall/ Value
70.5Build Quality
72.1Customizability
74.3Performance
56.9Productivity
50.5Portability
62.8$180
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-11% off
70
Overall/ Value
69.5Build Quality
78.6Customizability
66.5Performance
46.1Productivity
56.2Portability
77.2$89$79
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68
Overall/ Value
68.0Build Quality
69.9Customizability
60.8Performance
46.0Productivity
75.1Portability
86.9$119
Add to comparison
62
Overall/ Value
62.2Build Quality
57.3Customizability
59.9Performance
85.5Productivity
59.1Portability
67.2$59
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62
Overall/ Value
61.8Build Quality
71.1Customizability
52.7Performance
42.6Productivity
60.4Portability
81.6$216
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60
Overall/ Value
60.4Build Quality
55.0Customizability
60.7Performance
92.3Productivity
51.4Portability
67.5$59
Keychron C0 HE One Handed
View on MK
40%,
Hotswap,
Wired,
RGB/ White LEDs,
HE,
Rapid trigger,
Tray Mount
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$49
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$29
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$80
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$95
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$90
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$49
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$274
![[In Stock] HX-40 40% MX/EC Keyboard kit](https://cdn.shopify.com/s/files/1/1674/0405/files/hx40zf13-69.jpg?v=1760005641&width=3840&quality=75)
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$40
![[Pre Order] PromoType x Arterlier Lin Curve Pack Artisan Keycaps for KBA50](https://cdn.shopify.com/s/files/1/1674/0405/files/coated_grey.jpg?v=1782797873&width=3840&quality=75)
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$36
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$25
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$40
Out of stock
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78
Overall/ Value
78.2Build Quality
80.7Customizability
75.4Performance
46.6Productivity
80.8Portability
82.9$89
![[Pre-Order] @40 40% Low Profile Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/DSC_1222_1.jpg?v=1749523764&width=3840&quality=75)
Out of stock
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76
Overall/ Value
75.9Build Quality
81.5Customizability
79.9Performance
61.7Productivity
59.8Portability
80.4$125
![[Group-Buy] Notfromsam S46 R3 - Barebones Keyboard Kit](https://cdn.shopify.com/s/files/1/0064/2560/8282/files/converted_5472x3648_0496e083-0b81-48b7-918b-9b651521a990.jpg?v=1777339940&width=3840&quality=75)
Out of stock
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75
Overall/ Value
75.1Build Quality
82.9Customizability
80.1Performance
61.7Productivity
54.2Portability
84.5$159
Out of stock
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75
Overall/ Value
74.8Build Quality
78.8Customizability
70.5Performance
47.0Productivity
77.1Portability
84.4$139
![[Shipping, Inventory available soon] Cheerz 40% Keyboard Kit by ptdc](https://cdn.shopify.com/s/files/1/1674/0405/files/04.png?v=1733425202&width=3840&quality=75)
Out of stock
Add to comparison
73
Overall/ Value
73.2Build Quality
73.8Customizability
77.9Performance
66.9Productivity
67.0Portability
73.3$32
Out of stock
Add to comparison
71
Overall/ Value
70.8Build Quality
74.2Customizability
76.6Performance
47.2Productivity
59.8Portability
80.3$154
![[In Stock] Zan 40 keyboard kit by Niuniu Selection](https://cdn.shopify.com/s/files/1/1674/0405/files/403.jpg?v=1711088070&width=3840&quality=75)
Out of stock
Add to comparison
70
Overall/ Value
70.2Build Quality
77.7Customizability
70.5Performance
47.0Productivity
56.7Portability
67.2$180
Out of stock
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70
Overall/ Value
70.2Build Quality
70.9Customizability
76.7Performance
58.4Productivity
59.9Portability
89.8$106
Out of stock
Add to comparison
70
Overall/ Value
69.9Build Quality
72.9Customizability
62.8Performance
45.1Productivity
77.0Portability
87.5$170
Out of stock
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68
Overall/ Value
68.2Build Quality
74.4Customizability
71.0Performance
47.3Productivity
57.0Portability
80.4$109
![[Pre-Order] ORTHO Roly-poly 40 R3 Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/42A5DCDF6CC2BFFDC11E43D62A22AC4B_56e3ae27-1b5a-4910-8d50-059f522426b7.jpg?v=1745208295&width=3840&quality=75)
NIUNIU ORTHO Roly poly 40 R3
View on zFrontier
40%,
Hotswap,
Wireless,
Wired,
VIAL,
Alu case,
Top Mount
Out of stock
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68
Overall/ Value
67.5Build Quality
65.3Customizability
75.9Performance
56.5Productivity
60.6Portability
89.2$78
Out of stock
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67
Overall/ Value
67.1Build Quality
74.3Customizability
70.9Performance
47.3Productivity
51.6Portability
80.4$109
![[Pre-Order] STAGGERED Roly-poly 40 R3 Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/lqGJ5CU1q_XZzAS-6G7bu3QqWXvt.JPG-large1400.png?v=1745233035&width=3840&quality=75)
Out of stock
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64
Overall/ Value
63.9Build Quality
69.0Customizability
57.7Performance
58.0Productivity
56.7Portability
84.4$130
Out of stock
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$288
![[Pre Order] Hare Works TWO 40 Tented Unibody Alice](https://cdn.shopify.com/s/files/1/1674/0405/files/9.MAO-beige.jpg?v=1762236870&width=3840&quality=75)
Out of stock
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$55
Out of stock
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$115
![[Pre Order] Minimi40 Keyboard Kit](https://cdn.shopify.com/s/files/1/1674/0405/files/DSC04192-219.jpg?v=1761814490&width=3840&quality=75)
1
40% Mechanical Keyboards
Looking for a 40% keyboard? Browse every 40% mechanical keyboard in one place. Compare ultra-compact boards and kits to find the perfect minimalist keyboard for your setup.
All 40% Keyboards Available Now
Our database tracks every 40% mechanical keyboard currently on the market. Filter by switch type, case material, connectivity, and price to narrow down the full list of ultra-compact boards. New 40% models and kits are added regularly from brands across the custom keyboard community.
Best 40% Keyboards
The best 40% keyboards maximize functionality in a minimal footprint. Top-rated models feature QMK and VIA support for extensive layer programming, hot-swappable PCBs, and premium case materials. Build quality matters especially at this size, where every key and its programmed layers must work flawlessly together.
40% Keyboard Kits for Custom Builds
40% keyboard kits let you build the ultimate compact board from scratch. Kits typically include the case, PCB, and plate. You choose switches, stabilizers, and keycaps to match your preferences. Many open-source 40% designs have active communities with firmware support and build guides for first-time builders.
How to Use a 40% Mechanical Keyboard
A 40% keyboard removes the number row, function keys, and navigation cluster, relying entirely on layers for these functions. Hold a layer key and the home row becomes numbers, another layer provides symbols and F-keys. The learning curve takes about a week for most users, but the payoff is minimal finger movement and maximum desk space.
40% Keyboards for Programming
Programmers who master 40% boards report faster coding speeds because fingers never leave the home row. Custom QMK layers let you place brackets, semicolons, and navigation keys on comfortable positions. Pair a 40% with an ortholinear or staggered layout and home-row mods for an optimized programming workflow.
40% vs 60% and 65% Layouts
A 40% keyboard drops the number row that 60% and 65% boards keep. This makes 40% boards significantly smaller and more portable, but requires more layer usage for numbers and symbols. If you are comfortable with layers and want the smallest possible typing footprint, 40% is the most space-efficient layout available.