**Product Specifications:**
**Brand:** SilverStone
**Model:** SST-RM51
**Chassis Type:** 5U
**Material:** Steel
**Motherboard Support:** SSI-EEB/SSI-CEB/E-ATX/ATX/M-ATX/Mini-ITX
**Drive Bays:**
- 3.5" x 2 (compatible with 2.5" x 3) + 3.5" x 2 (compatible with SFXPSU)
- 2.5" x 4
**Cooling System:**
- Front: 120mm x 3/180mm x 2 (pre-installed AirPenetrator184iPRO fan x 2)
- Rear: 120mm x 1/140mm x 1
- Rear Fan External Bracket: 80mm x 2
- Water Cooling Support: 360mm x 1 (120mm x 3)/360mm x 1 (180mm x 2)
**Expansion Slots:** 8
**Front I/O:**
- USB Type-C x 1
- USB 3.0 x 2
- Power Indicator Light x 1
- HDD Indicator Light x 1
- Network Indicator Lights x 2
**Maximum GPU Length:** 455mm (without fan or water cooling installed)
**Maximum CPU Cooler Height:** 181mm (with bracket)/192mm (without bracket)
**Power Supply Support:** PS2 (ATX)/MiniRedundant
**Dimensions:**
- Without rear fan external bracket: 440mm (W) x 220mm (H) x 485mm (D), 46.95 liters
- With rear fan external bracket: 440mm (W) x 220mm (H) x 530mm (D), 51.3 liters
**Weight:** 10.6kg
**Other Features:** Theft Deterrent Switch
(Note: Specifications may vary slightly based on configuration and region.)
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