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Silver 4U rackmount server chassis with eight front hot-swap 3.5-inch drive bays

BFKK

BFKK 4U Rackmount Server Chassis 8-Bay 12Gbps SATA/SAS SFF-8643 Backplane

SKU CH-A0KN-8MPQE

A 4U rackmount server chassis with eight hot-swap 3.5-inch SATA/SAS drive bays and a 12Gbps SFF-8643 backplane

  • Chassis TypeRackmount
  • EATX to Mini-ITX motherboard support fits diverse builds
  • 8 hot-swap 3.5-inch SATA/SAS bays with 2.5-inch compatibility
  • 12 Gbps SFF-8643 backplane handles high-speed storage traffic
  • 3×12038 PWM fans plus optional rear 8 cm fans cool drives
  • 8 full-height expansion slots and ATX or CRPS PSU options

Chassis & Motherboard Support

The 4U rackmount enclosure accepts EATX, ATX, Micro-ATX and Mini-ITX motherboards, giving builders a wide choice of server or workstation platforms. Eight full-height expansion slots provide room for multiple add-in cards such as RAID controllers, network adapters or GPU accelerators. A standard ATX supply or a redundant CRPS unit can be fitted, so power architecture matches the deployment.

12 Gbps Backplane Limits

The SFF-8643 MiniSAS backplane delivers 12 Gbps bandwidth per lane to each hot-swap bay. That ceiling is set by the SAS-3 electrical specification, so drives faster than 12 Gbps will negotiate down to this speed. Cable routing uses the two included reversed SFF-8643 to 4×SATA cables, which carry the same 12 Gbps limit to SATA targets.

Drive Capacity & Headroom

Eight front-accessible 3.5-inch bays accept both 3.5 and 2.5-inch SATA or SAS drives, plus one fixed internal 3.5-inch position for a boot or parity device. The hot-swap design allows drive replacement without powering down, while three 12038 PWM fans and two optional 8 cm rear fans move air across dense drive stacks. Storage grows until the eight-bay backplane is full.

Pluspunten

  • EATX to Mini-ITX motherboard support fits diverse builds
  • 8 hot-swap 3.5-inch SATA/SAS bays with 2.5-inch compatibility
  • 12 Gbps SFF-8643 backplane handles high-speed storage traffic
  • 3×12038 PWM fans plus optional rear 8 cm fans cool drives
  • 8 full-height expansion slots and ATX or CRPS PSU options

Specificaties

Chassis TypeRackmount

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How many hot-swap drive bays does this chassis provide and what drive sizes are supported?

The chassis includes eight hot-swap bays that accept 3.5-inch SATA or SAS drives, and 2.5-inch drives are also compatible in the same bays.

What does the 12Gbps rating on the backplane mean for actual drive throughput?

The 12Gbps MiniSAS backplane can deliver up to 12Gbps per lane to each connected SATA or SAS drive, so drive speed is limited by the drive itself rather than the backplane.

Which interface does the SFF-8643 backplane use and what does it cap in practice?

The SFF-8643 MiniSAS HD backplane carries four lanes of 12Gbps SAS or SATA signalling, capping each drive at the protocol's 12Gbps maximum.

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