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Black 4U server chassis with eight hot-swap drive bays and front USB 3.0 ports

Supermicro

Supermicro CSE-743TQ-903B-SQ 4U 903W server chassis

SKU CH-E1ZF-24NC5 MPN CSE-743TQ-903B-SQ

A 4U server chassis holding eight hot-swappable 3.5-inch SAS/SATA drives with a 903W 80-Plus Gold power supply and whisper-quiet fans under 28dB

  • Eight hot-swap bays for dense SAS/SATA storage
  • Whisper-quiet operation below 28 dB in typical use
  • Lockable front door plus intrusion switch for physical security
  • Front USB 3.0 ports for fast external device access
  • 903 W 80-Plus Gold supply delivers efficient power

4U Server Chassis with 903W Power

The Supermicro CSE-743TQ-903B-SQ is a 4U rackmount or tower chassis designed for high-density storage deployments. It accommodates E-ATX boards up to 12 by 13 inches alongside standard ATX and Micro-ATX form factors. The integrated 903W 80-Plus Gold power supply delivers efficient power for demanding server workloads. It targets administrators building storage-heavy platforms with hot-swap requirements.

Whisper-Quiet Cooling and Efficient Power

Three PWM fans, two 8cm units and one 9cm rear fan, maintain airflow while keeping acoustic output below 28dB in typical operation. The 903W power supply holds 80-Plus Gold certification, reducing waste heat and operating cost under continuous load. Hot-swap drive bays allow drive replacement without interrupting airflow or system uptime. This thermal design suits noise-sensitive rack or office environments.

Hot-Swap Backplane and Physical Security

An 8-bay 3.5-inch SAS/SATA backplane enables tool-less drive changes for rapid maintenance or capacity expansion. Three 5.25-inch external bays remain available for optical drives or accessories. A lockable front door secures the drive bays, while a side-panel intrusion switch alerts administrators to unauthorised access. Front-facing USB 3.0 ports provide convenient local connectivity for diagnostics or media.

Istaknuto

  • Eight hot-swap bays for dense SAS/SATA storage
  • Whisper-quiet operation below 28 dB in typical use
  • Lockable front door plus intrusion switch for physical security
  • Front USB 3.0 ports for fast external device access
  • 903 W 80-Plus Gold supply delivers efficient power

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How do I install the motherboard and which form factors fit the CSE-743TQ-903B-SQ?

The chassis supports E-ATX 12" x 13", ATX and Micro ATX boards; mount the standoffs to match the board pattern before securing it.

What maintenance will the cooling and power supply need over time?

Three PWM fans (two 8 cm front, one 9 cm rear) and the 903 W 80-Plus Gold PSU should be cleaned of dust periodically; fan bearings may eventually require replacement.

At what point does noise or heat become the limiting factor during sustained loads?

The design targets under 28 dB; sustained heavy loads will raise fan speeds and temperature before the 903 W power ceiling is reached.

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