User value
HP Z840
1
LED
(BIST)
8
USB 2.0 (2
)
2
/
9
USB 3.0 (4
)
3
(
) 10
(2
)
โดยท
ั
้
งสองช
่
องพร
้
อมรองร
ั
บ AMT
4
PS/2 (
) 11
PCI/PCIe
5
PS/2 (
) 12
6
(
) 13
7
(
)
HP Z440 HP Z640 HP Z840
13.20 .
(29.10
)
17.90 .
(39.46
)
23.50 .
(51.90
)
12.50 .
(27.56
)
15.50 .
(34.17
)
19.80 .
(43.70
)
8 2