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Chapter 3: About Your RAID Controller ● 26
About the Adaptec RAID 52445
The Adaptec RAID 52445 is a SAS RAID controller with these features:
Form Factor Full Height, Half Length
Bus compatibility PCIe 1.1
PCIe bus width x8
Data transfer rate 3 Gb/s per port
Phys (Unified Serial Ports) 28
Standard cache 512 MB DDR2
Connectors, Internal 6 mini-SAS x4 (SFF-8087)
Connectors, External 1 mini-SAS x4 (SFF-8088)
Maximum number of disk drives 28 direct-attached (or up to 256 with expanders)
Enclosure Support I2C and SGPIO (Serial General Purpose Input/Output)
Onboard speaker Yes
Battery Backup Module Adaptec Battery Module 800/800T (sold separately—see
page 19)
CN0
CN1
CN2
CN3
I2C, CN0
I2C, CN1
Mode 0 Flash connector
CN4
CN5
Ext. Alarm
Aggregate Activity
Reserved
Activity CN4, CN5
Activity CN2, CN3
I2C, CN4
I2C, CN3
I2C, CN5
CN6
Activity
CN0, CN1
I2C, CN2
Battery connector
1 external
mini-SAS
connector
6 internal
mini-SAS
connectors