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Silver 1U rackmount server chassis with four front hot-swap drive bays

iStarUSA Inc.

iStarUSA Inc. E1M4 Silver 1U Rackmount 4-Bay Server Chassis

SKU CH-CJ84-TS392 MPN E1M4

A 1U rackmount server chassis holding four hot-swap 3.5" SAS/SATA drive bays with four 40mm fans and front USB 2.0 ports

  • Form factor1U
  • Chassis styleRackmount
  • Housing materialHeavy-duty SGCC Cold-rolled Steel (Main Chassis)
  • Supported motherboard sizes12 × 13 (E-ATX, ATX, micro-ATX)
  • Hot-swappable bays4 × 3.5 in SAS/SATA
  • Expansion card slots1
  • Hot-swap drive bays let you replace storage without downtime
  • Four 40mm fans provide active airflow through the 1U chassis
  • Supports E-ATX, ATX and micro-ATX boards up to 12 x 13 inches
  • Front USB 2.0 ports give quick access for peripherals
  • Built-in LEDs and switches show power, fan status and drive activity

1U Rackmount 4-Bay Server Chassis

The iStarUSA E1M4 is a 1U silver rackmount chassis built from heavy-duty SGCC cold-rolled steel. It supports E-ATX, ATX and micro-ATX motherboards up to 12 x 13 inches. Four 40 mm fans provide airflow across the internal layout. Front indicators show power, fan failure and drive activity while switches handle power, reset and mute functions.

Storage-Dense 1U Builds Without Full-Height

This chassis suits deployments that need four hot-swap 3.5" SAS/SATA bays in a single rack unit and only one low-profile expansion slot. The front panel adds two USB 2.0 ports plus a slim 5.25" optical bay and a slim 3.5" FDD bay. Builds requiring multiple full-height cards, additional drive bays or front USB 3.0 connectivity should consider a larger form factor.

Four Hot-Swap Bays With One Low-Profile Slot

The four hot-swap bays accommodate 3.5" SAS and SATA drives, giving dense storage capacity within the 1U height. A single expansion slot limits add-in cards to low-profile designs only. Cooling relies on the four included 40 mm fans; thermal headroom will depend on the specific motherboard and drive configuration installed.

How it compares

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

Price $458.99
Pricier than about 80% of the 1,006 comparable items (median $222.49).

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Specifications

Product
Brand nameiStarUSA
Model nameE1M4
Product colorSilver
Storage
Hot-swappable bays4 × 3.5 in SAS/SATA
External slim drive bays1 x Slim 5.25 in Optical
1 x Slim 3.5 in FDD
Ports & slots
Expansion card slots1
Front panel ports2 x USB 2.0
Size & build
Form factor1U
Chassis styleRackmount
Housing materialHeavy-duty SGCC Cold-rolled Steel (Main Chassis)
Product dimensions27 in × 19 in × 1.75 in
Shipping weight10.55 kg
Package size775 × 565 × 165 mm
Compatibility
Supported motherboard sizes12 × 13 (E-ATX, ATX, micro-ATX)
More details
40mm fans4

Questions about this item

Does this 1U rackmount chassis support an E-ATX motherboard measuring 12 x 13 inches?

Yes, the chassis accepts motherboards up to 12 x 13 inches, covering E-ATX, ATX and micro-ATX form factors.

Can I keep using my existing 3.5-inch SAS or SATA drives in the four hot-swap bays?

The four front hot-swap bays accept 3.5-inch SAS and SATA drives, so your current drives will fit directly.

How do I confirm the four 40mm fans are spinning correctly after installation?

A dedicated fan-failure LED on the front panel lights up if any of the four 40mm fans stops, giving immediate visual confirmation.

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