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Relatived Resource  
ARC-8028 manual
ARC-8028 Datasheet


Third Party Enclosure  
  MTC 316 W & MTC 424 Enclosures With Areca Series 12Gb/s Products  




ARC-8028-24/32 SAS Expander Module
(12Gb/s SAS expander box. Three or four SFF-8644 ports: one host and others for expansion to additional JBOD enclosures)

ARC-8028 supports DataBolt™ Bandwidth Optimizer to buffer 6Gb/s data and then transfer it out to the host at 12Gb/s speeds in order to match the bandwidth between faster hosts and slower SAS or SATA devices. It also supports failover function for improving system reliability for today’s data center and storage subsystems.

The 12Gb/s SAS ARC-8028 expander module is designed with an integrated ARM Cortex-R4 processor for topology management functions such as discovery, enclosure and drive management, and LED management. The ARC-8028 expander module features three or four 12Gb/s SAS SFF-8644 ports. It is designed to fit into a stand-alone box and can be installed in a 5.25” mounting shell. The ARC-8028 is ideal for enclosure customers that want to support up to 24/32 channels 12Gb/s SAS or 6Gb/s and 3Gb/s SAS/SATA JBOD function units using SFF-8643 SAS cables. The ARC-8028 firmware has been included the failover to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance. User can configure ARC-8028 redundant mode with multiple expander module using either RAID controllers or HBAs to achieve failover protection.
12Gb/s SAS expander box
Model Name
External SAS Ports
External SAS Port Type
3 x SFF-8644
4 x SFF-8644
Internal SAS Ports
Internal SAS Port Type
6 x SFF-8643
8 x SFF-8643
  Box Controller Modules

Expander Board: 1 modules
  Sensors: 1 sensor on expander board
  Controller External Connectors
  SAS Connectors
  1 x SAS “IN” connector for connection to the host
  2/3 x SAS “OUT” connector for expasion to next JBOD enclosure
  SAS Hot-Plug Hard Drives
  Up to 24/32 12.0 Gb/s, 6.0Gb/s or 3Gb/s SAS hard drives at speed of 10K or 15K rpm
  SATA Hot-Plug Hard Drives
  Up to 24/32 6.0 Gb/s or 3Gb/s SATA hard drives at speeds of 7.2K or 10K rpm
  Internal Connectors
  6/8 SFF-8643 Min SAS HD connectors
  1 x 6-pin PCI-E power connector
  4 x 3-pin fan connector
  2 x 2-pin power status connector
  1 x 6-pin LCD connector
  1 x 7-pin dual expander module heartbeat connector
  Serial Connector (per Expander Board)
  1 x 6-pin UART RJ-11 connector (for expander box manager only)
  1 x RJ-45 LAN connector (for manufacture manager only)
  LED Indicators
  Internal fault/activity header
  24/32 2.54mm activity and fault header
  External SAS Port LED Indicators
  Two one-color LED status indicators for each SAS host port, one for SAS port link and one for the activity status
  Two one-color LED status indicators for each SAS expansion port, one for SAS port link and one for the activity status
  LCD Control Panel for setup, alarm mute and configuration
  System status indication through LCD, LED (link status and activity) and alarm buzzer
  Enclosure management (protocols SES-2 over SAS ports) ready
  In-band SAS port
  Out-of-band RS232 serial port
  CLI through RS232 serial port
  41(H) x 145(W) x 200(D) mm
  Operating: 10° to 40°C
  Storage: –40° to 70°C
  Relative Humidity
  Operating 10% to 80% (non-condensing)
  Storage 5% to 95% (non-condensing)
  Power Consumption
12V @ 1.9Amps = 22.8W
+5V @ 0.52Amps = 2.6W
  Optional Prouduct - Accessories
ARC-8028MB-Mounting Bracket


An ATX I/O Shield is a small metal plate located at the back of each rackmount chassis that provide openings for different I/O ports of a motherboard.

ARC-8028MB-Mounting Bracket for user to leverage the ATX I/O Shield position as ARC-8028 box I/O port. You can use ARC-8028MB to fit ARC-8028 box I/O port in the standard ATX I/O-Slot found in a Rackmount Chassis.

↑ ARC-8028 on ATX I/O Shield



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