Cooler Master MasterBox E300L Computer Case

By Engage Gaming


The MasterBox E300L combines practicality with an accent of style. Able to support high-end graphics cards (363mm), Micro-ATX, and Mini-ITX motherboards, the E300L also has generous room for easy assembly. 

The front panel keeps ventilation subtle while the side panel offers additional cooling support. Stand out from the rest with a Silver colour accent.

With a compact and sensible design, the E300L is a cost effective chassis for your computing needs.


The brushed texture of the front panel adds an elegant element to your workstation or office.


The MasterBox E300L comes pre-installed with a single 120mm fan in the front. The front supports a single 80mm, 90mm and 120mm fan.

The rear supports a single 80mm or 90mm fan.


The perforated side panel allows for additional airflow for direct cooling on the CPU.


The MasterBox E300L case supports CPU-Coolers up to a height of 148mm, Graphic Cards up to a length of 363mm and Power Supplies up to a length of 180mm.


Brushed Front Panel: The brushed texture of the front panel adds an elegant element to your workstation or office.
• Coloured Trim: Stand out from the rest with a nice Silver colour accent. 
• Security Lock Anchor: Security lock protects your system by positioning the anchor directly onto the chassis.
• Side Panel with Air Vent: Allows for additional airflow for cooling support.


  • Product Name - MasterBox E300L
  • Product Number - MCB-E300L-KN5N-B02 (Silver)
  • Materials - Steel, Plastic
  • Dimensions (LxWxH) - 448 x 180 x 364mm
  • Motherboard Support - Micro-ATX, Mini-ITX
  • Expansion Slots - 4
  • 5.25" Drive Bays - 1
  • 3.5" HDD Drive Bays - 2
  • 2.5" SSD Drive Bays - 3
  • I/O Port - USB 3.0 x 2, Audio In / Out
  • Pre-installed Fan(s) - Front: 120mm x 1
  • Fan Support - Front: 80mm x 1 / 90mm x 1 / 120mm x 1, Top: N/A, Rear: 80mm x 1 / 90mm x 1, Bottom: N/A
  • Radiator Support - Front: N/A, Rear: N/A
  • Clearances - CPU Cooler: 148mm, GFX: 363mm, PSU: 180mm wo/ODD, 160mm w/ODD
  • Power Supply Support - Top mount, ATX
  • EAN Code - 4719512071373 (MCB-E300L-KN5N-B02, Silver)
  • UPC Code - 884102043871 (MCB-E300L-KN5N-B02, Silver)