Lenovo ThinkSystem SD550 V3 User Manual page 237

From (system board)
OCP power and
1a
sideband connector
OCP signal connector
1b
Rear I/O signal
2
connector
Note: When connecting the rear I/O cable to the rear I/O module, make sure to secure the attached
grounding cable with a screw.
Figure 156. Installation of the rear I/O cable and grounding cable
To
Node (secured with
1
screws)
Rear I/O signal
2
connector (on the rear I/O
module)
Cable
MCIO x8 (270 mm)
MCIO x16 (450 mm)
Low-profile SlimSAS x8 to SlimSAS x8 (915 mm)
Chapter 6
to GenZ 4C+ OCP
connector
.
Internal cable routing
227