BFKK 3U Rackmount Server Chassis EATX/ATX/MATX 4x5.25 6x3.5 Top/Side Cooling
- Rackmount
Silverstone
A 5U rackmount server chassis supporting ATX and EATX motherboards with dual 360 mm radiator mounts, eight expansion slots and front USB 3.0 plus Type-C ports
The SilverStone RM52 is a 5U rackmount server chassis finished in black steel. It accepts Micro ATX, ATX, Mini ITX, EATX, SSI EEB and SSI CEB motherboards, making it suitable for industrial rack deployments or high-end home systems that can be oriented vertically or horizontally. Eight expansion slots provide room for multiple add-in cards.
Cooling capacity includes front mounts for four 120 mm fans or two 360 mm radiators, a rear 120 mm or 140 mm position with one 140 mm fan supplied, and a rear fan cage holding two 80 mm fans that are also included. CPU cooler clearance reaches 181 mm with the expansion card retainer fitted and 192 mm without it, while graphics card length ranges from 160 mm to 190 mm depending on drive cage configuration.
Internal storage comprises two 3.5 inch bays that each accept three 2.5 inch drives, two further 3.5 inch bays that can instead house an SFX secondary PSU, plus four dedicated 2.5 inch bays. The primary PSU slot takes a standard PS2 ATX unit or a mini redundant supply. Front I/O provides two USB 3.0 ports and one USB Type-C connector, while LED indicators show power, drive and dual LAN activity. Sliding rail mounting holes are pre-drilled for rack installation.
| Brand | SilverStone |
|---|---|
| Model | RM52 |
| Chassis Type | Rackmount |
| Form Factor | 5U |
| Color | Black |
| Case Material | Steel |
| Motherboard Compatibility | Micro ATX / ATX/ Mini ITX/ EATX/ SSI EEB/ SSI CEB |
| Power Supply | Primary PSU slot: PS2 (ATX) / Mini Redundant Secondary PSU slot: SFX (occupies 3.5" bracket) |
| LED Indicators | 1 x Power status 1 x HDD activity 2 x LAN activity |
| Internal 3.5" Drive Bays | 2 x 3.5" (compatible with 3 x 2.5") + 2 x 3.5" (compatible with SFX PSU) |
| Internal 2.5" Drive Bays | 4 |
| Expansion Slots | 8 |
| Max CPU Cooler Height | Height w/ expansion card retainer: 181mm Height w/o expansion card retainer: 192mm |
| Max GPU Length | 160mm~190mm (Removal of 3.5" drive cage eliminates PSU depth limitation) |
| Front Ports | 2 x USB 3.0 / 1 x USB Type-C |
| Radiator Options | Front: 4 x 120mm / 2 x 360mm Rear: 1 x 120mm |
| Fan Options | Front: 6 x 120mm Rear: Rear I/O: 1 x 120mm / 1 x 140mm (1 x 140mm fan included) Rear fan cage: 2 x 80mm (2 x 80mm fans included) |
| Dimensions | Incl. rear fan cage: 8.66" x 17.3" x 23.82" Excl. rear fan cage: 8.66" x 17.3" x 22.05" |
| Weight | 25.24 lbs. |
| 配送重量 | 18.14 kg |
| 梱包サイズ | 711 × 584 × 432 mm |
The 140 mm fan mounts on the rear I/O panel and the two 80 mm fans go in the rear fan cage; the step often missed is securing the cage with its screws before sliding the chassis into the rack.
The front panel has removable filters for the six 120 mm intake positions; the rear 140 mm and 80 mm fans also have filter meshes that should be cleaned periodically.
The front radiator space fits two 360 mm units, but the 160–190 mm GPU length restriction and 181 mm CPU cooler height with the retainer in place become the limiting factors under heavy sustained loads.
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