Adaptec 2420SA User Guide - Page 22
About the Adaptec 2820SA, The Adaptec 2820SA is a SATA II RAID controller with these features
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Page 22 highlights
Chapter 3: About Your RAID Controller ● 22 About the Adaptec 2820SA The Adaptec 2820SA is a SATA II RAID controller with these features: Mode 0 Flash connector LED connectors I2C connector SATA ports 0 1 2 3 4 5 6 7 Activity LED connector Battery connector PCI-X jumper PCI-X connector Mounting bracket SUM Activity LED Activity LED 3,3V LED Phy IRQ LED 76 543 21 0 Charge LED (for battery backup module) Back side of Controller Diag LEDs Bus compatibility PCI-X, 3.3 V Bus width 64-bit Bus speed 133 MHz Standard cache 256 MB Maximum number of disk drives 8 Internal Connector 8x SATA connector Battery backup module Adaptec Battery Module 500 (sold separately-see page 17) Audible alarm Yes Note: A low-profile bracket is included with this controller. However, this controller may not fit in all low-profile systems.