iStarUSA Inc.
iStarUSA Inc. E1M4 Silver 1U Rackmount 4-Bay Server Chassis
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
- Chassis TypeRackmount
- Form Factor1U
- ColorSilver
- Case MaterialHeavy-duty SGCC Cold-rolled Steel (Main Chassis)
- Motherboard Compatibility12 x 13 (E-ATX, ATX, micro-ATX)
- Hot-Swap Drive Bays4 x 3.5" SAS/SATA
- 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.
Highlights
- 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
Specifications
| Brand | iStarUSA |
|---|---|
| Model | E1M4 |
| Chassis Type | Rackmount |
| Form Factor | 1U |
| Color | Silver |
| Case Material | Heavy-duty SGCC Cold-rolled Steel (Main Chassis) |
| Motherboard Compatibility | 12 x 13 (E-ATX, ATX, micro-ATX) |
| Hot-Swap Drive Bays | 4 x 3.5" SAS/SATA |
| Expansion Slots | 1 |
| External Slim Drive Bays | 1 x Slim 5.25" Optical 1 x Slim 3.5" FDD |
| Front Ports | 2 x USB 2.0 |
| 40mm Fans | 4 |
| Features | Indicators: Power + Fan Failure + HDD LED Switches: Power On/Off, Reset, Mute |
| Dimensions | 27.00" x 19.00" x 1.75" |
| Shipping weight | 10.55 kg |
| Package size | 775 × 565 × 165 mm |
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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