User`s guide

Chapter 3: About Your RAID Controller ● 23
About the Adaptec 2820SA
The Adaptec 2820SA is a SATA RAID controller with these features:
Note: A low-profile bracket is included with this controller. However, this controller may not fit in
all low-profile systems.
Bus compatibility PCI-X, 3.3 V
Bus width 64-bit
Bus speed 133 MHz
Standard cache
128 MB
1
1
256 MB also available
Maximum number of disk drives 8
SATA cables included 8
Battery backup module Adaptec Battery Module 500 (sold separately—see page 18)
Audible alarm Yes
Mounting bracket
Mode 0 Flash connector
Activity LED connectors
I2C connector
SATA ports
0
1
5
4
3
2
6
7
PCI-X connector
Battery connector