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Silver 2U rack chassis with 24 front 2.5-inch drive bays and four 8cm fans

Shenzhen Junxiangcheng Technology Co.,

Shenzhen Junxiangcheng Technology Co., 2U 24-disk server chassis 12Gb/s SAS expander

SKU CH-NJZ2-VJ7J1

A 2U server chassis holding 24 front 2.5" drives and 3 internal 2.5" drives with a 12Gb/s SAS expander backplane

  • Form Factor2U
  • 24 front 2.5" drive bays for high-density storage
  • 12Gb/s SAS expander backplane with SFF-8643 interface
  • 3 built-in 2.5" drive positions add internal capacity
  • 4 hot-swappable 8025 fan positions with temperature control
  • 7 half-height PCIe slots support vertical expansion cards

24-Drive 2U Server Chassis

This 2U chassis holds twenty-four front 2.5-inch drives and three internal 2.5-inch drives for dense storage deployments. It accepts standard motherboards up to 12 by 13 inches and fits in 650-millimetre deep racks. The expander backplane runs at 12Gb/s over Mini-SAS HD SFF-8643 links. Builders needing more than twenty-seven drive bays or a different form factor should look elsewhere.

Thermals and Power in Normal Use

Three hot-swappable 8025 ball fans occupy four 8-centimetre positions and operate under temperature control. The chassis supports standard 2U power supplies and CRPS redundant units up to 240 millimetres long. Front light-guide columns show drive activity while the anti-EMI drive trays slide smoothly. The 1.0-millimetre SGCC shell resists fingerprints.

Behaviour Under Sustained Load

Time-sharing spin-up sequences stagger drive starts to limit inrush current during heavy array rebuilds. The expander backplane includes SGPIO signalling and temperature monitoring to manage sustained throughput. Seven vertical half-height PCIe slots accommodate long-term compute or HBA cards. System LEDs report power, fan, overheat and UID status continuously.

Highlights

  • 24 front 2.5" drive bays for high-density storage
  • 12Gb/s SAS expander backplane with SFF-8643 interface
  • 3 built-in 2.5" drive positions add internal capacity
  • 4 hot-swappable 8025 fan positions with temperature control
  • 7 half-height PCIe slots support vertical expansion cards

Specifications

Form Factor2U

Questions about this item

How do I install the 12Gb/s SAS expander backplane with Mini-SAS HD SFF8643 cables, and what step is often missed?

Connect each SFF8643 cable from the RAID controller to the backplane ports, then verify the SGPIO link so drive LEDs show activity.

What maintenance will the three 8025 ball fans and hot-swap drive trays need later?

Clean fan filters quarterly; fans are hot-swappable so replace any failed unit without downtime. Trays need only occasional latch inspection.

Which limit appears first under sustained load — the 240 mm PSU depth or the 650 mm chassis depth for airflow?

The 240 mm PSU depth restriction is the first constraint; ensure redundant CRPS units fit within that length for proper cooling.

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