About The Adaptec 2420Sa - Adaptec SAS/SATA/SCSI RAID Controllers Installation And User Manual

About the Adaptec 2420SA

The Adaptec 2420SA is a SATA II RAID controller with these features:
Mode 0 Flash connector
LED connector
I2C connector
SUM Activity LED
Charge LED
(for battery
backup module)
Bus compatibility
Bus width
Bus speed
Standard cache
Maximum number of disk drives 4
Internal Connector
Battery backup module
Audible alarm
Note:
A low-profile bracket is included with this controller. However, this controller may not fit in
all low-profile systems.
Chapter 3: About Your RAID Controller
SATA ports
1
0
PCI-X connector
Mounting bracket
Activity LED
Phy
3
2
1
Back side of Controller
PCI-X, 3.3 V
64-bit
133 MHz
256 MB
4x SATA connector
Adaptec Battery Module 500 (sold separately—see
Yes
Activity LED connector
3
2
Battery connector
PCI-X jumper
3,3V LED
IRQ LED
0
Diag LEDs
21
page 17)