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Silver 3U rackmount server chassis with sixteen front 3.5-inch hot-swap drive bays and 12Gb/s SAS expander backplane

Shenzhen Junxiangcheng Technology Co.,

Shenzhen Junxiangcheng Technology Co., 3U Server Chassis 16×3.5″ 12Gb/s SAS Expander

SKU CH-9J3W-T840Z

A 3U rackmount server chassis with sixteen hot-swap 3.5-inch drive bays, a 12 Gb/s SAS expander backplane, three hot-swap 12038 fans and tool-free top cover

  • Form factor3U
  • 16 front 3.5″ bays with 12 Gb/s SAS expander backplane
  • tool-free top cover for fast service access
  • three hot-swap 12038 ball fans keep airflow steady
  • supports standard 12″×10.5″ motherboards and full-height PCIe cards
  • 0 mm SGCC chassis resists fingerprints and EMI

3U 16-Bay SAS Expander Chassis

This 3U rackmount server chassis holds sixteen front 3.5" drives and three internal 2.5" drives behind a 12Gb/s SAS expander backplane with Mini-SAS HD (SFF-8643) connectors. It fits standard motherboards up to 12" × 10.5" and includes seven full-height vertical PCIe slots for add-in cards.

Suits dense storage builds with SAS backplane

The expander backplane supports temperature control, SGPIO and staggered spin-up, making it appropriate for cloud storage, big data or security monitoring arrays. Builders who need front USB 3.0 ports, tool-less drive trays beyond the top cover latch, or a backplane without an integrated expander should look elsewhere.

12Gb/s SAS expander with Mini-SAS HD

The single specification that decides fit is the 12Gb/s expander backplane using Mini-SAS HD (SFF-8643) links to the host controller. Verify your HBA or RAID card provides matching ports and expander support before purchasing.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $1,169.99
Pricier than about 90% of the 1,006 comparable items (median $222.49).

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Specifications

Size & build
Form factor3U

Questions about this item

What does the 12Gb/s expander rating mean once the chassis is populated with drives?

The 12Gb/s expander backplane lets each connected SAS drive run at up to 12Gb/s, so 16 front 3.5″ bays and three internal 2.5″ bays can all operate at that speed simultaneously through the Mini-SAS HD SFF-8643 links.

What does the Mini-SAS HD SFF-8643 interface cap in practice?

The four-lane Mini-SAS HD SFF-8643 connectors carry 12Gb/s per lane, so the backplane’s total throughput is limited by the number of cables plugged into the RAID controller or HBA.

What physical space and mounting does this 3U chassis need?

It occupies a 3U rack slot measuring 560mm deep, 437.5mm wide and 132mm high, supports motherboards up to 12″ × 10.5″, and fits standard 2U or CRPS redundant power supplies up to 240mm long.

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