| Model | EP-2123-UA-S / R | 
|---|---|
| Form-factor | 2U 19"rackmount chassis | 
| RAID processor | 400MHz storage I/O processor | 
| RAID level | 0 , 1 , 10 (1E) , 3 , 5 , 6 and JBOD | 
| Cache memory | 256 MB | 
| No. of channel (Host + drive) | 4 + 12 | 
| Host bus interface | USB 2.0 / eSATA x 2 / iSCSI | 
| Drive bus interface | SATA II (Up to 3.0 Gbps) | 
| Data transfer rate | Support up to 480 Mbps (USB 2.0) Support up to 3.0 Gbps (SATA II) Support 10 / 100 / 1000 Mbps Ethernet  | 
                            			
| Hot-swap drive tray | Twelve (12) 1-inch trays | 
| Cooling fans | 2 | 
| Password protection | Yes | 
| Audible alarm | Yes | 
| Failed drive indicators | Yes | 
| Failed drive auto rebuild | Yes | 
| Online consistency check | Yes | 
| Online expansion | Yes | 
| Array roaming | Yes | 
| Online RAID level / stripe size migration | Yes | 
| Instant availability and background initialization | Yes | 
| Environment monitor | Yes | 
| Auto spare support | Yes | 
| Bad block auto-remapping | Yes | 
| Remote management | Yes | 
| MAID support | Yes | 
| Over 2TB support | Windows OS which GPT supported (Windows XP/x64 , 2003/SP1 or 64-bit , Vista , 2008) Mac OS 10 or later , Linux kernel 2.6 or later  | 
                            			
| Power supplies | 400W x1(upgradeable) power supply w/PFC (EP-2123-UA-S) 400W x2 redundant power supplies w/PFC (EP-2123-UA-R)  | 
                            			
| Power requirements | AC 100V ~ 240V full range , 8A ~ 4A , 47Hz ~ 63Hz | 
| Environmental | |
| Relative Humidity | 10% ~ 85% Non-condensing | 
| Operating Temp | 10°C ~ 40°C (50°F ~ 104°F) | 
| Physical Dimensions | 88 (H) x 482 (W) x 500 (D) mm | 
| Weight (w/o Drives) | 14.4 Kgs | 
| * Specification is subject to change without notice. All company and product names are trademarks of their respective owners. | |
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|---|---|
| Firmware | Release Note | 
| [427KB] | [230KB] |