The A34812-ITX is a 48-lanes 12Gb/s SAS/SATA expander in a mini-ITX form factor. This complete subsystem incorporates everything system vendors need to add next-generation storage support for JBOD and RBOD systems that need to support SAS and SATA target disks. Each SAS lane can connect to a disk, a host bus adapter (HBA) or cascade to another expander device. When configured for cascaded connections, the A34812-ITX allows a single SAS RAID or HBA card to drive hundreds of target disks. With support for LSI DataBolt(tm), the A34812-ITX expander board helps to maximize bandwidth utilization between legacy 3Gbps and 6Gbps media, and 12Gbps SAS hosts. For additional performance, lanes can be aggregated into a 'wide' ports connecting an host to the A34812-ITX, and cascaded to additional expanders. The A34812-ITX includes a number of enclosure management features that allow system vendors to monitor temperatures, sensors and VPD information as well as control PWM fans for optimal noise management.
| Host Bus Type |
n/a |
| Compliance |
ANSI T10 SAS specification 3.0 |
| Modes |
Standalone fabric switch, Storage Enclosures |
| Supply Voltage |
12V +/- 10% |
| Supply Power |
30 Watts |
| SAS Bus |
Fourty-eight 12Gb/s SAS/SATA ports |
| SAS Bandwidths |
3.0Gb/s (SAS1.0/SATA-II)
Single lane - 300 MB/s
Wide Port (4 lanes) - 1200 MB/s
Wide Port (8 lanes) - 2400 MB/s
6.0Gb/s (SAS-2.0/SATA-III)
Single lane - 600 MB/s
Wide Port (4 lanes) - 2400 MB/s
Wide Port (8 lanes) - 4800 MB/s
12.0Gb/s (SAS-3.0)
Single lane - 1200 MB/s
Wide Port (4 lanes) - 4800 MB/s
Wide Port (8 lanes) - 9600 MB/s
|
| Connectors |
External |
Internal |
| A34812-ITX-02 |
16 lanes routed through four SFF-8644 miniSAS HD connectors. |
32 lanes routed through eight SFF-8643 miniSAS HD connectors. |
| Form Factor |
Mini-ITX, 140mm x 140mm |
| Protocols |
SAS-3, SAS-2, SES-2, SAS, SATA II, SATA III |
| Device Support |
Effectively unlimited (limited by HBA controller) |
| Agency Approval |
RoHS Compliant (lead-free) |
|
Environments
Temperature
Relative Humidity
|
Operating
0° to 55° C
5 to 90% non-condensing
|
Storage
-40° to +85° C
5 to 90% non-condensing
|
