Dell DR4300 Owner's Manual page 174

Item Connector
9 J_IDSDM
10 J_NDC
11 J_USB
12 J_VIDEO_REAR
13 J_COM1
14 J_IDRAC_RJ45
15 J_CYC
16 CYC_ID
17 J_TPM_MODULE
18 J_RISER_2AX
19 J_RISER_1AX
20 J_RISER_2BX
21 J_RISER_1BX
22 J_RISER_3AX
23 J_QS
24 J_RISER_3BX
25 J_SATA_B
26 J_STORAGE
27 J_USB_INT
28 J_SATA_A
29 BAT
30 CPU 2
31 J_BP3
32 B10, B6, B2, B9, B5, B1
33 J_BP_SIG2
34 J_FAN2U_6
35 J_FAN2U_5
36 J_BP2
37 B3, B7, B11, B4, B8, B12
38 J_FAN2U_4
39 A10, A6, A2, A9, A5, A1
40 J_FAN2U_3
41 J_BP1
174
Description
Internal dual SD module connector
Network daughter card connector
USB port
Video connector
Serial connector
iDRAC8 connector
System identification connector
System identification button
Trusted Platform Module connector
Riser 3 connector
Riser 1 connector
Riser 2 connector
Riser 1 connector
Riser 3 connector
Quick Sync bezel connector
Riser 3 connector
Internal SAS connector
Mini PERC connector
Internal USB port
Internal SAS connector
Battery connector
Processor 2 socket
Backplane power connector 3
Memory module sockets
Backplane signal connector 2
Cooling fan connector
Cooling fan connector
Backplane power connector 2
Memory module sockets
Cooling fan connector
Memory module sockets
Cooling fan connector
Backplane power connector