Gaming & Key Matrix Diagnostics
Keyboard N-Key Rollover (NKRO) & Ghosting Test
Mash multiple keys simultaneously or try the gamer cluster combos on the right. Verify whether your keyboard hardware supports 2KRO, 6KRO (standard USB limit), or True Hardware NKRO without ghosting.
โก
๐ก๏ธTrue NKRO Rollover Test Mode
Start Fullscreen NKRO Test
Mashing 6 to 20+ keys simultaneously triggers browser shortcuts unless running in dedicated Fullscreen mode. Enter fullscreen to test your keyboard's true hardware rollover limits.
FULLSCREEN NKRO MATRIX ACTIVE
Anti-Ghosting NKRO Keyboard
Full 100% ANSI Matrix`
1
2
3
4
5
6
7
8
9
0
-
=
BACK
TAB
Q
W
E
R
T
Y
U
I
O
P
[
]
\
CAPS
A
S
D
F
G
H
J
K
L
;
'
ENTER
SHIFT
Z
X
C
V
B
N
M
,
.
/
SHIFT
CTRL
WIN
ALT
SPACEBAR
ALT
CTRL
โ
โ
โ
โ
๐ก Mash any keys simultaneously โ keys glow green on pressZero Ghosting Diodes
Keys Held Now
0
Live switch contacts
Peak Rollover
0
Press keys to test
Hardware Matrix Rating:
2KRO (Membrane):2 - 3 Keys Max
6KRO (USB Standard):6 Keys Max
True NKRO (Gaming):Unlimited (All Keys)
Active Keystroke List:0 keys active
Press multiple keys on your keyboard...
Anti-Ghosting Gaming Clusters:Auto-detecting
FPS Movement
W+A+S+D+Space
Test Combo
MOBA Row
Q+W+E+R+D+F
Test Combo
Racing / Retro
โ+โ+Space+Z
Test Combo