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RM21-308
￭ Backplane support for 8 port SAS / SATA drives and 12 Gb/s Mini-SAS SFF-8087***
￭ Supports eight 2.5"/3.5" SAS/SATA HDD/SSD
￭ Includes three 80 x 15mm PWM fans
￭ Independent drive status LED
￭ Supports Micro ATX motherboards
￭ Supports four low profile PCI / PCIe slots
￭ Auto lock handle for easy to fixed the 2U rackmount on the cabinet
Remark
Test environment
RM21-308 backplane ECS05 SAS 12G HBA Toshiba PX02SMF040 SAS 12G SSD CPS06 – Mini-SAS HD(SFF8643) to Mini-SAS(SFF8087) cable |
SPECIFICATIONS
| Model No. | SST-RM21-308 | |
| Chassis form factor | 2U | |
| Motherboard | Micro ATX (9.6" x 9.6"), Mini-ITX (6.7” x 6.7”) | |
| Drive Bay | External | 3.5" or 2.5" HDD/SSD hot-swap x 8 |
| Internal | 2.5" x 2 (up to 15mm), slim optical x 1 (up to 12.7mm) | |
| Cooling System | 80 x 15mm ball bearing fan x 3, 4000±10%RPM | |
| Power Supply | 2U single or 2U redundant / PS2 (ATX) up to 160mm deep and 86.3mm height (not included) | |
| Limitation of CPU cooler | 68mm | |
| Power connector on HDD backplane | 4-Pin peripheral x 2 | |
| Expansion Slot | Low profile PCI / PCIe x 4 | |
| Front I/O Port | USB 2.0 x 1, USB 3.1 Gen 1 Type-A x 1** | |
| Front buttons | Power On / Off, system reset | |
| Indicators | Chassis : Power LED x 1: Blue HDD Access x 1: Green LAN LED x 2: Green HDD Tray : HDD Power LED x 8: Yellow HDD Access x 8: Blinking green |
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| HDD backplane | 8 ports SAS / SATA to Mini-SAS SFF-8087 x 2 | |
| HDD Interface | SAS-1 / SAS-2 / SAS-3 SATA-1 / SATA-2 / SATA-3 |
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| Main metal thickness | 1mm | |
| Net Weight | 7.3 kg | |
| Dimension | 430mm (W) x 88.5mm (H) x 480mm (D) 18.3 Liters 16.93" (W) x 3.48" (H) x 18.9" (D) 18.3 Liters | |
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**RM21’s USB internal cable is 800mm long, so if you are connecting an external enclosure to the USB 3.1 port, we recommend using it with shorter cables to prevent performance loss. ***Mini-SAS HD (SFF8643) to Mini-SAS (SFF8087) cable and 12 Gb/s SAS HD card required for 12 Gb/s performance. (e.g. SilverStone CPS06 & ECS05) |
PICTURES
- DOWNLOADS
- RECOMMENDATIONS
- PRODUCT REVIEWS
- Q&A
| Describe | Ver | Size | Download |
 RM21-308 manual |
V1.0 | 3,136 KB |  |
| RM21-308 High resolution photos |
13,347 KB | |
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RM21-308 eDM (rm21-308-edm-en.jpg)
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411 KB |
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Single PSU List
Redundant PSU support list
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