---
product_id: 452505388
title: "InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F"
brand: "in win"
price: "$877.00"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.us/products/452505388-inwin-bl631-matx-desktop-case-with-300w-tfx-psu-black
store_origin: US
region: United States of America
---

# Tool-Free Installation New PPCT Cooling Tech 11.5L Ultra Compact SFF InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F

**Brand:** in win
**Price:** $877.00
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Compact power meets whisper-quiet cool — your sleek stealth setup awaits!

## Quick Answers

- **What is this?** InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F by in win
- **How much does it cost?** $877.00 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/452505388-inwin-bl631-matx-desktop-case-with-300w-tfx-psu-black)

## Best For

- in win enthusiasts

## Why This Product

- Trusted in win brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Savvy Design:** Ultra-small 11.5L chassis fits Micro-ATX & Mini-ITX boards without compromise.
- • **Effortless Upgrades:** Tool-free bays and expansion slots make component swaps a breeze—no hassle, no downtime.
- • **Smart Thermal Layout:** Strategic airflow design with adjustable air duct and enlarged vents keeps your system cool under pressure.
- • **Whisper-Quiet Cooling:** Innovative New Partition Plate Cooling Technology ensures optimal thermals with minimal noise.
- • **Media-Ready Flexibility:** Infrared receiver support and optional internal amplifier for seamless media center integration.

## Overview

The InWin BL631 is a premium 11.5L small form factor desktop case designed for Micro-ATX and Mini-ITX motherboards. Featuring the world’s first New Partition Plate Cooling Technology, it delivers superior thermal management and acoustic performance. With tool-free installation, multiple drive bays, and media center support, this case combines compact versatility with professional-grade functionality, perfect for space-conscious professionals who demand quiet efficiency and easy upgrades.

## Description

Design Philosophy BL Series is small 11.5L S.F.F chassis with optimal thermal and acoustic performance New Partition Plate Cooling Technology (New PPCT) PPCT is the world’s first advanced thermal and acoustic cooling technology. It provides S.F.F chassis excellent thermal solutions while creating a quieter computing experience. The second generation of PPCT includes an adjustable air duct and enlarged vent for various positions within your PC. The New PPCT also supports the LGA 1155 socket. High Compatibility It is compatible with standard desktop components, which makes the installation easier and provides a great expandability when needed. Multi-Enjoyment Designated with Infrared Receiver position to support Media Center and optional internal amplifier. Detachable Drive Bay Cage For easy installation. Tool-Free Optional tool-free designs – ODD/FDD/HDD bays, expansion slots, and side cover

Review: Good case and compact for small spaces. Lots of room for the components and cables.
Review: This case may look like it's designed for a boomer who works a 8-6 shift every day to escape his horrible marriage ... and it absolutely is. But don't let that stop you from throwing an APU in there and hiding it behind your TV so no one can see it! All jokes aside, this case is fantastic value. It has a lot of space for stuff I don't need like traditional HDD's and CD/DVD bays, but despite the wasted space, this case is still very small if you have a MATX motherboard. Thermals on the case are great, it has a massive open cutout where the cpu is which will basically serve as your intake fan. Turn the case upside down vertically and you'll have a perfect thermal solution. Fresh air coming to the cpu, hot air exiting the exhaust fan at the top and your PSU will be exhausting at the top as well. It's kinda funny because this setup gives me the best possible thermals yet it's technically designed to have the PSU on the bottom when vertically mounted with an exhaust fan blowing air out of the bottom as well. YES this case has standoffs, someone mentioned in a different review that it didn't. You don't need standoffs because the elevation is built into the case, you can screw any matx board in there and don't have to worry about shorting out your system. No dust filters, who really cares though, the more airflow the better.

## Features

- Case Type: 11.5L S.F.F Slim Chassis(Ultra Small Form Factor)
- M/B Type: Micro-ATX, Mini-ITX
- External Bay: 5.25" x 1, 3.5" x 1
- Internal Bay: 3.5" x 2, 2.5" x 1
- Expansion Slots: 4x Low Profile Slots

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B096MGCL2D |
| Best Sellers Rank | 227,134 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 2,491 in Computer Cases |
| Guaranteed software updates until | unknown |
| Item model number | BL631.FF300TB3F |
| Manufacturer | InWin |
| Product Dimensions | 48.26 x 15.24 x 38.1 cm; 5.9 kg |

## Product Details

- **Brand:** IN WIN
- **Case type:** Desktop
- **Colour:** black
- **Cooling method:** Air
- **Fan size:** 120 Millimetres
- **Material:** Plastic Alloy Steel
- **Model name:** BL631.FF300TB3F
- **Motherboard compatibility:** Micro ATX
- **Power supply mounting type:** Bottom Mount
- **Recommended uses for product:** Business

## Images

![InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F - Image 1](https://m.media-amazon.com/images/I/41TSnge32ZS.jpg)
![InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F - Image 2](https://m.media-amazon.com/images/I/41yVNs3VXMS.jpg)
![InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F - Image 3](https://m.media-amazon.com/images/I/51VjYv2wnDS.jpg)
![InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F - Image 4](https://m.media-amazon.com/images/I/51bkrjh-jhS.jpg)
![InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F - Image 5](https://m.media-amazon.com/images/I/61Y+IU6D+kS.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***N on 3 January 2026*

Good case and compact for small spaces. Lots of room for the components and cables.

### ⭐⭐⭐⭐⭐ Review
*by D***P on 9 May 2024*

This case may look like it's designed for a boomer who works a 8-6 shift every day to escape his horrible marriage ... and it absolutely is. But don't let that stop you from throwing an APU in there and hiding it behind your TV so no one can see it! All jokes aside, this case is fantastic value. It has a lot of space for stuff I don't need like traditional HDD's and CD/DVD bays, but despite the wasted space, this case is still very small if you have a MATX motherboard. Thermals on the case are great, it has a massive open cutout where the cpu is which will basically serve as your intake fan. Turn the case upside down vertically and you'll have a perfect thermal solution. Fresh air coming to the cpu, hot air exiting the exhaust fan at the top and your PSU will be exhausting at the top as well. It's kinda funny because this setup gives me the best possible thermals yet it's technically designed to have the PSU on the bottom when vertically mounted with an exhaust fan blowing air out of the bottom as well. YES this case has standoffs, someone mentioned in a different review that it didn't. You don't need standoffs because the elevation is built into the case, you can screw any matx board in there and don't have to worry about shorting out your system. No dust filters, who really cares though, the more airflow the better.

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 14 April 2025*

Great compact case for a custom built office PC. I find the standby LED flashes a bit too brightly tho

## Frequently Bought Together

- InWin BL631 mATX Desktop case with 300W TFX PSU/Black/IEEE 1394 - BL631.FF300TB3F
- Intel Core i5-12400 Desktop Processor 18M Cache, up to 4.40 GHz
- GIGABYTE H610M S2H (H610/ Intel/LGA 1700/ Micro ATX/ DDR5/ Single M.2/ PCIe 4.0/ USB 3.2 Gen1/ Realtek GbE LAN/Motherboard)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-19*