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Compact silver mini-tower case with front USB and audio ports

In Win

In Win BL631EH300TB3FEMI 11.5L SFF PC Case 300W 80+ Bronze TFX PSU 195mm GPU 72mm CPU Cooler

SKU CH-DT6D-8W69W MPN BL631EH300TB3FEMI

Ultra-small 11.5 L chassis fits micro-ATX or mini-ITX boards, includes a 300 W 80+ Bronze TFX supply, and accepts GPUs up to 195 mm with CPU coolers up to 72 mm

  • Max graphics card length195 mm
  • Power supply included300 W
  • Supported motherboard sizesMicro ATX / Mini-ITX
  • Front panel ports4 x USB 2.0, 2 x Audio
  • CPU cooler height limit72 mm
  • Product typeUltra Small Form Factor
  • 5 L ultra-compact chassis fits tight spaces
  • 300 W 80+ Bronze TFX PSU powers efficient builds
  • 195 mm max GPU length accepts short graphics cards
  • 72 mm CPU cooler clearance supports low-profile cooling
  • Four USB 2.0 and two audio front ports for easy access

Ultra-small 11.5L chassis with 300W TFX supply

The In Win BL631EH300TB3FEMI is an ultra-small 11.5-litre case that ships with a 300W 80+ Bronze TFX power supply. It accepts Micro ATX or Mini-ITX motherboards and fits a graphics card up to 195 mm long. A 3.5-inch EMI shield bay cover is pre-installed for the external drive bay. Builders who need more expansion slots or multiple drive bays will find the layout restrictive.

Fan-less thermal design with Bronze-rated PSU

The chassis relies on the power supply fan for airflow and adds no extra system fan, keeping noise low in normal use. The 80+ Bronze rating means the supply meets standard efficiency targets at typical loads. CPU coolers are limited to 72 mm in height, so only low-profile models are compatible. Overclockers or users planning sustained heavy loads should note the single-fan cooling path.

Compact front I/O and fixed PSU format

Four USB 2.0 ports and two audio jacks sit on the front panel for everyday peripherals. The TFX power supply is a specific form factor, so future upgrades must match that size. Cable routing space is tight in an 11.5-litre volume, requiring careful assembly. Anyone wanting front-panel USB 3.0 or a standard ATX supply will need a different case.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $79.99
Cheaper than about 64% of the 1,468 comparable items (median $100.99).
Max graphics card length 195 mm
Lower than about 98% of the 894 comparable items (median 400 mm).

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Specifications

Product
Product typeUltra Small Form Factor
Ports & slots
Front panel ports4 x USB 2.0, 2 x Audio
Power
Power supply included300 W
Size & build
Max graphics card length195 mm
Shipping weight6.35 kg
Package size493 × 401 × 157 mm
Compatibility
Supported motherboard sizesMicro ATX / Mini-ITX
CPU cooler height limit72 mm

Questions about this item

How do I install the included 300W 80+ Bronze TFX power supply, and what step is often missed?

Slide the TFX unit into the dedicated bracket and secure it with the supplied screws; the step often missed is connecting the 24-pin ATX and 4-pin CPU power cables before closing the side panel.

What maintenance will the pre-installed 3.5" EMI shield bay cover need later?

The cover is a passive metal shield; no maintenance is required unless you remove it to install a 3.5" drive, in which case simply refit the same screws.

At what point does the 72 mm CPU cooler height limit become the bottleneck under sustained load?

The 72 mm restriction caps cooler choice to low-profile models, so thermal headroom runs out first when a high-TDP processor exceeds the cooler's dissipation capacity during prolonged workloads.

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