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SilverStone 3U Rackmount Server Chassis (SST-RM31)

3U steel chassis supporting SSI‑EEB, SSI‑CEB, Extended ATX, ATX, Micro‑ATX & Mini‑ITX. Holds 2×3.5"/2×2.5" drives, 8 slots, 458 mm card length. Front 3×120 mm, rear 2×60 mm fans, 120/240/360 mm radiator. SFX/SFX‑L PSU (250 mm primary, 140 mm secondary). USB‑C + 2 USB 3.0, LED status, side intrusion switch.

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SPECIFICATIONS:

Chassis Form Factor	3U
Material	Steel
Motherboard	SSI-EEB, SSI-CEB, Extended ATX, ATX, Micro-ATX, Mini-ITX
Drive bay	Internal: 3.5"X2 or 2.5"X2, 2.5"X2
Cooling system	Front 120mm x 3 Rear Rear I/O: 60mm x 2
Radiator support	Front: 120mm / 240mm / 360mm
Limitation of CPU cooler	110mm
Expansion slot	8
Limitation of expansion card	Length: 458mm (without installing front fans, radiators) Width: 115mm
Power supply	Primary PSU slot: SFX/SFX-L / 2U CRPS Redundant Secondary PSU slot: SFX/SFX-L (Removal of 3.5" drive cage)
Limitation of PSU	Primary PSU slot: 250mm (Removal of 3.5" drive cage eliminates PSU depth limitation) Secondary PSU slot: 140mm
Front I/O port	USB Type-C x 1 USB 3.0 x 2
LED Indicators	Power status x 1: Blue HDD activity x 1: White LAN activity x 2: Green
Dimension	438mm (W) x 132mm (H) x 488mm (D), 28.21 liters 17.24" (W) × 5.20" (H) × 19.21" (D)
Remark	Side switch for chassis intrusion security
Compatibility	* Compatible with rail slide – RMS01/RMS09-20 RMS series rail slide compatibility

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