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Black 3U rackmount chassis, aluminium front bezel with lock, two front USB 2.0 ports, single 60 mm fan, 20.8 in deep

iStarUSA Inc.

iStarUSA DD-300-SEA-BLACK 3U rack mount chassis

SKU CH-GMHP-J02H9

A 3U rack mount chassis with aluminium front bezel, two front USB 2.0 ports, seven expansion slots and support for ATX and microATX boards

  • 3U compact rack-mount design fits standard 19-inch cabinets
  • Seven full-length expansion slots support ATX and microATX motherboards
  • Six drive bays combine four 5.25-inch and three 3.5-inch positions
  • Front-panel USB 2.0 ports give quick peripheral access
  • 60 mm cooling fan with optional 80 mm upgrades for thermal control

Compact 3U rack-mount chassis

The iStarUSA DD-300-SEA-BLACK is a 3U industrial rack-mount chassis designed for server or workstation builds that need front-access connectivity and a lockable aluminium front bezel. It accepts ATX and microATX motherboards up to 12 by 9.6 inches and provides seven full-length expansion slots for add-on cards. A single 60 mm cooling fan is included, with brackets available for additional 60 mm or 80 mm fans.

Suited for dense rack deployments.

This chassis suits integrators building rack-mounted systems that require two internal 3.5-inch drives, four 5.25-inch bays and front-panel USB 2.0 ports. It is not for users who need hot-swap drive trays or tool-less installation, because those features require an optional backplane unit not included here. Builders wanting a lighter aluminium main body must also order that option separately.

Fits standard 19-inch racks with 20.80-inch depth

The unit measures 20.80 inches deep, 19 inches wide and 5.25 inches high, matching standard 19-inch rack dimensions. The 1.2 mm SECC zinc-coated steel main chassis provides structural rigidity, while the patented aluminium front panel with locks secures the front access. Power, reset, HDD LED and optional temperature or fan alarms connect to the front panel, leaving the rear free for motherboard I/O and expansion cards.

How it compares

Measured against everything we stock in Audio Stands, Racks & Boom Arms, at today’s prices. Recalculated every night.

Price $44.99
Pricier than about 69% of the 791 comparable items (median $32.99).

Specifications

No published specifications for this item yet.

Questions about this item

What motherboard form factors fit the 12 x 9.6 inch mounting pattern?

ATX and microATX boards mount directly to the 12 x 9.6 inch tray, so you need one of those form factors for the standoffs to align.

Will the 60 mm fan and optional 80 mm fans share the same power headers?

The chassis ships with one 60 mm fan; optional 80 mm fans mount on the DD-FANGUARD-8 bracket and connect to your motherboard or fan controller headers.

How do I confirm the chassis is receiving power and the drive is active after assembly?

The front panel shows a blue power LED and a red HDD LED; both light when the system is on and the drive is accessed.

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