Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 12pm Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
The Cooler Master MasterCase Pro 3 Mini-Tower Case is built with a FreeForm Modular system that enables you to build a high-performance PC in a compact chassis. The MasterCase Pro 3 can support mini-ITX and micro-ATX motherboards as well as up to eight storage drives within a mini-tower form factor. To handle large-sized components and liquid-cooling systems, the FreeForm system comes with adjustable layout parts that include drive cages, SSD pockets, and cooling brackets along with a sliding clip-and-click panel and partition panel.
For storage drive options, Cooler Master lets you install up to five 3.5" drives inside the two drive cages, which can be removed to accommodate graphics cards up to 14.6" long. Slip-and-clip SSD pockets support up to two 2.5" drives, and space behind the motherboard tray lets you attach a third 2.5" drive.
The MasterCase Pro 3 provides five expansion slots so you can install up to two double-slotted graphics cards. To support heavy graphics cards, Cooler Master includes a universal VGA holder. Cooling the internal components is accomplished by two 140mm fans that spin at a rate of 1200 rpm. For more cooling performance, the case can house liquid-cooling solutions or up to three additional user supplied fans. Moreover, two USB 3.0 ports as well as headphone and microphone jacks are located on top of the case, so you can easily connect your gear to the MasterCase Pro 3.
FreeForm Modular System
The MasterCase Pro 3 is designed with Cooler Master's FreeForm modular system, so you can build a high-performance PC in a tighter frame. This system supports up to five fans, eight storage drives, and two graphics cards.
Remove the partition panel to add space for a second graphics card
Adjust the sliding clip and click panel for your needs: HDD cages, DIY cooling system, or remove it
Remove the front cooling bracket for convenient fan or radiator installation outside of the case
Compact and Portable
Save space and easily transport your build with the MasterCase Pro 3. Its compact size and top handles enable you to easily transport the MasterCase Pro 3 to LAN parties, special events, and trade shows while still fitting full-sized components.
In the Box
Cooler Master MasterCase Pro 3 Mini-Tower Case
Limited 1-Year Warranty
Table of Contents
5 x 3.5" Supports two 2.5" drives via SSD pockets, and a third 2.5" can be mounted behind the motherboard tray
2 x USB 3.0 1 x headphone 1 x microphone
Front: 2 x 140 mm fans (includes one 1200 rpm fan) Rear: 1 x 1200 rpm, 140 mm fan (included); 1 x 120 mm fan Top: 2 x 120/140 mm fans
Rear: 120 mm or 140 mm Top: 120 mm, 140 mm, or 240 mm Front: 120 mm, 140 mm, 240 mm, or 280 mm