The following illustration shows the connectors on the expander card. Each connector on the expander
card is used to connect a mini-SAS to mini-SAS signal cable. For detailed information, see “Mini-SAS to
mini-SAS signal cable connections” on page 43.
Figure 24. Expander card
1
Connector 1
4
Connector 4
2
Connector 2
5
Connector 5
3
Connector 3
6
Connector 6
Hot-swap hard-disk-drive backplane
Your server comes with one of the following hot-swap hard disk drive and backplane configurations:
• Up to eight 3.5-inch hot-swap SATA or SAS hard disk drives with one backplane
• Up to eight 2.5-inch hot-swap SAS hard disk drives or solid-state drives with one backplane
• Up to sixteen 2.5-inch hot-swap SAS hard disk drives or solid-state drives with two backplanes
To locate the backplane(s), see “Server components” on page 31.
Backplane for 3.5-inch hard disk drives
This topic provides information to help you locate the connectors on the backplane for 3.5-inch hard disk
drives.
40
ThinkServer RD640 User Guide and Hardware Maintenance Manual
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