Razer BlackWidow V4 Pro — Key Test, NKRO & Chatter Check
Press any key on the Razer BlackWidow V4 Pro to verify it registers, measure hold time in milliseconds, check N-Key Rollover, and spot double-press chatter — entirely in your browser.
| Brand | Razer |
|---|---|
| Layout | Full (104/108-key) |
| Switch options | Green Clicky, Yellow Linear |
| Connection | Wired |
| Released | 2023 |
| Approx. price | ~$230 |
Keys Tested
0 / 104
Max Concurrent (NKRO)
0
Last Hold Time
—
Avg Hold Time
—
Chatter Events
0
Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
`
1
2
3
4
5
6
7
8
9
0
-
=
Backspace
Tab
Q
W
E
R
T
Y
U
I
O
P
[
]
Enter
Caps
A
S
D
F
G
H
J
K
L
;
'
\
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Win
Alt
Alt
Win
Menu
Ctrl
PrtSc
ScrLk
Pause
Ins
Home
PgUp
Del
End
PgDn
↑
←
↓
→
Num
/
*
-
7
8
9
+
4
5
6
1
2
3
Enter
0
.
Key Event Log
Press a key to see its details here.
Mouse Diagnostic
Waiting for input…
Left Click
Right Click
Middle / Scroll Click
Back (Button 4)
Forward (Button 5)
Scroll Delta
0
Polling Rate
—
Clicks / sec
0
Peak CPS
0
Total Clicks
0
Click Chatter
0
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What to know about the Razer BlackWidow V4 Pro
Standard mechanical switch design (not optical) — a useful direct comparison point against the Huntsman line if you're deciding between Razer's mechanical and optical switch families.
These are general notes about this switch/connection type, not a substitute for the live test above — behavior varies from unit to unit. Run the test on your own board to see what yours actually does.