We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver aluminium front bezel with lock, black steel 4U rackmount chassis, two front fans visible

iStarUSA Inc.

iStarUSA Inc. D-400SEA-SL-T7SA 4U server rack

SKU CH-KCYD-G6YMB MPN D-400SEA-SL-T7SA

A 4U rack-mount chassis with aluminium front bezel, seven expansion slots, four 5.25-inch and three 3.5-inch drive bays, dual USB 2.0 ports, and standard 120 mm plus 80 mm cooling fans

  • TypeRack Mount Cabinet
  • Rack Units4U
  • ColorColor of Front Bezel: Silver Color of Main Chassis: Black
  • MaterialMaterial of Front Bezel: Aluminum alloy Material of Handle:
  • Cooling (Optional)1 x 80mm
  • Cooling (Standard)1 x 80mm, 1 x 120mm
  • Silver aluminium front bezel with key lock secures the chassis
  • 4U height fits standard 19-inch racks using 1.2 mm Japanese SECC steel
  • Seven expansion slots plus four 5.25-inch and three 3.5-inch drive bays offer dense storage
  • Dual 120 mm and 80 mm fans with optional 80 mm unit provide scalable airflow
  • Front USB 2.0 ports and power, HDD, temperature and fan indicators simplify daily management

4U Rackmount Chassis with Silver Front Bezel

The iStarUSA D-400SEA-SL-T7SA is a 4U server chassis built from 1.2mm SECC zinc-coated steel with an aluminum alloy front bezel in silver. It accepts ATX and microATX motherboards up to 12" x 9.6" and provides seven expansion slots. A key lock on the front bezel secures the drive bays and controls. Two front-access USB 2.0 ports simplify local maintenance.

Upgrade from Tower or 2U Systems for More Drive

This chassis replaces tower cases or 2U racks when you need four 5.25" bays, one external 3.5" bay and two internal 3.5" bays in a single 4U footprint. Standard cooling uses one 120mm and one 80mm fan; an optional 80mm fan can be added. The jump is worth it when hot-swap capability is required via the optional BPU-230 cage supporting SATA and SAS 6 Gbps drives.

Standard 19-Inch Rack Mount with Front Cable Access

The unit measures 19.00" x 7.00" x 20.80" and mounts in standard 19-inch racks using the included zinc-coated steel handles. Installation is straightforward: secure the chassis, connect the power and reset switches, then wire the power, HDD, temperature and fan LEDs — fan and temperature indicators need the optional TC-ISF08 sensor board. PS2 or mini-redundant power supplies fit the rear opening. Builders needing more than seven expansion slots or deeper motherboards should look elsewhere.

Highlights

  • Silver aluminium front bezel with key lock secures the chassis
  • 4U height fits standard 19-inch racks using 1.2 mm Japanese SECC steel
  • Seven expansion slots plus four 5.25-inch and three 3.5-inch drive bays offer dense storage
  • Dual 120 mm and 80 mm fans with optional 80 mm unit provide scalable airflow
  • Front USB 2.0 ports and power, HDD, temperature and fan indicators simplify daily management

Specifications

BrandiStarUSA
ModelD-400SEA-SL-T7SA
TypeRack Mount Cabinet
Rack Units4U
ColorColor of Front Bezel: Silver
Color of Main Chassis: Black
MaterialMaterial of Front Bezel: Aluminum alloy
Material of Handle: SECC Zinc-Coated Steel
Material of Main Chassis: 1.2mm SECC Zinc-Coated Steel (Japan Made)
Cooling (Optional)1 x 80mm
Cooling (Standard)1 x 80mm, 1 x 120mm
SpecificationStandard Drive Bays:
- 3.5" Drives: 1
- 3.5" Drive (internal): 2
- 5.25" Drives: 4
Indicators: Power, HDD, Temperature, Fan (Fan/Temp require sensor board TC-ISF08 )
Switches: Power, Reset
Supported PSU Type: PS2, Mini Redundant
Expansion Slots: 7
Security: Front Bezel Key Lock
Front Connector: 2 x USB 2.0
Motherboard Size: 12" x 9.6" (ATX, microATX)
FeaturesPatented Aluminum Front Panel with Locks
Optional BPU-230 2 to 3 Hot-Swappable HDD Cage
Optional Aluminum Chassis
Power and Alarm Reset Switch
Power and HDD LED
Front Access USB2.0 x2
120mm x1 and 80mm x1 Cooling Fan
With rugged 5.25" to 3.5" SATA SAS 6 Gbps HDD Hot-swap Rack
Unit Dimension19.00" x 7.00" x 20.80"
Shipping weight16.33 kg
Package size686 × 559 × 305 mm

Questions about this item

What rack depth and width does the 4U D-400SEA-SL-T7SA require?

The chassis measures 19.00 inches wide, 7.00 inches high and 20.80 inches deep, fitting a standard 19-inch rack with at least 20.80 inches of usable depth.

How are the 120mm and 80mm fans mounted, and what step is often missed?

The 120mm and 80mm fans install in the standard cooling positions; the step often missed is connecting the sensor board TC-ISF08 so the front-panel temperature and fan indicators function.

When should the 80mm optional fan be added, and what maintenance do the front USB 2.0 ports need?

Add the optional 80mm fan when higher airflow is needed; the front USB 2.0 ports require only occasional dust removal to maintain reliable connections.

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.