Acer Altos R5250 - Manual (Page 32)

1 System tour 14
Backplane board
The backplane board installed on the rear side of the hot-plug drive
bay provides support for both SAS and SATA2 hard drives.
No. Description
1 System fan connectors
2 SAS backplane sensor connector
3, 5, 6 SAS/SATA2 data cable connectors
4 SGPIO (Serial General Purpose Input/Output) connector to SAS
RAID or SAS daughter board
7 Power cable connector
8 SAS/SATA2 HDD connectors
9 Front panel board connector (to front panel board)
10 Front panel LED connector (to mainboard)