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Black 4U rackmount server chassis with six front 5.25" bays and two USB ports

Silverstone

Silverstone RM41-506 4U Rackmount Server Chassis Black

SKU CH-W196-FD5KK MPN RM41-506

A 4U rackmount server chassis supporting Micro-ATX, ATX, Mini-ITX and CEB boards with six 5.25-inch external bays, four 3.5-inch and three 2.5-inch internal bays.

  • Chassis TypeRackmount
  • Form Factor4U
  • ColorBlack
  • Case MaterialSGCC
  • Motherboard CompatibilityMicro ATX / ATX / Mini ITX / CEB
  • LED Indicators1 x Power status, 1 x HDD activity, 2 x LAN activity
  • Six external 5.25" bays give flexible storage options
  • Supports ATX, Micro ATX, Mini ITX and CEB motherboards
  • Seven standard-profile expansion slots for add-in cards
  • Two front USB 3.1 Gen1 Type-A ports for quick access
  • Four internal 3.5" and three internal 2.5" drive bays

4U rackmount chassis for dense storage builds

The SilverStone RM41-506 is a 4U rackmount server chassis built from SGCC steel and finished in black. It accepts Micro ATX, ATX, Mini ITX and CEB motherboards, making it suitable for a range of server and workstation deployments. Six external 5.25 inch drive bays dominate the front panel, offering high-density removable media or hot-swap cage capacity. Front-panel LEDs report power, drive activity and dual LAN status at a glance.

Six 5.25 inch bays limit internal drive density

The six 5.25 inch external bays consume the full front fascia, so internal 3.5 inch bays are capped at four and 2.5 inch bays at three, with one bay shared for slim optical use. Seven standard-profile PCI or PCIe expansion slots provide add-in card support, but only standard-height cards fit. Two front USB 3.1 Gen1 Type-A ports give local peripheral access without reaching the rear. No additional front I/O or tool-less mechanisms are specified.

SGCC steel construction suits permanent rack

The SGCC case material delivers rigid mounting for heavy drive loads and expansion cards in a fixed rack environment. At 6.93 inches high, 16.93 inches wide and 17.56 inches deep, the chassis matches standard 4U rail spacing and weighs 21.38 pounds. Fixed rail mounting is implied by the form factor; no quick-release or sliding rails are described. Builders needing more than four 3.5 inch drives or tool-less drive trays should consider alternative platforms.

Highlights

  • Six external 5.25" bays give flexible storage options
  • Supports ATX, Micro ATX, Mini ITX and CEB motherboards
  • Seven standard-profile expansion slots for add-in cards
  • Two front USB 3.1 Gen1 Type-A ports for quick access
  • Four internal 3.5" and three internal 2.5" drive bays

Specifications

BrandSilverStone
ModelRM41-506
Chassis TypeRackmount
Form Factor4U
ColorBlack
Case MaterialSGCC
Motherboard CompatibilityMicro ATX / ATX / Mini ITX / CEB
LED Indicators1 x Power status, 1 x HDD activity, 2 x LAN activity
External 5.25" Drive Bays6 x 5.25" drive bay
Internal 3.5" Drive Bays4
Internal 2.5" Drive Bays2 x 2.5" (up to 15mm)
1 x 2.5" (up to 15mm) or slim optical (12.7mm)
Expansion Slots7 x Standard profile PCI / PCIe
Front Ports2 x USB 3.1 Gen1 Type-A
Dimensions6.93" x 16.93" x 17.56"
Weight21.38 lbs.
Shipping weight13.61 kg
Package size610 × 584 × 356 mm

Questions about this item

Should I choose the four 3.5" bays or the three 2.5" slots for my storage build?

The chassis provides four internal 3.5" bays and three 2.5" slots — two dedicated 2.5" positions up to 15 mm and one shared slot that also accepts a 12.7 mm slim optical drive.

What does the 4U form factor mean once the chassis is mounted in a rack?

At 6.93 inches tall the unit occupies four rack units, leaving 16.93 inches of width and 17.56 inches of depth for motherboard, drives and seven standard-profile expansion cards.

What does the USB 3.1 Gen1 front port cap at in practice?

The two front Type-A ports run at USB 3.1 Gen1 speeds, so connected devices are limited to that interface's maximum throughput.

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