About the adaptec 2420sa – Adaptec SAS/SATA/SCSI RAID Controllers User Manual
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Chapter 3: About Your RAID Controller
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21
About the Adaptec 2420SA
The Adaptec 2420SA is a SATA II 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
256 MB
Maximum number of disk drives
4
Internal Connector
4x SATA connector
Battery backup module
Adaptec Battery Module 500 (sold separately—see
Audible alarm
Yes
Mounting bracket
Mode 0 Flash connector
LED connector
I2C connector
SATA ports
0
1
3
2
PCI-X connector
Battery connector
Activity LED connector
PCI-X jumper
Charge LED
(for battery
backup module)
SUM Activity LED
0
1
2
3
Activity LED
Phy
Back side of Controller
IRQ LED
3,3V LED
Diag LEDs