Overview

  • Optimally designed for silent computing with high density noise-reducing material throughout
  • Patent pending ModuVent design, allowing the user to either have optimal silence or optimal airflow, with removable dust filters
  • Supports up to 4 radiators (1 X 420/360/280/240mm, 1 X 360/280/240mm, 1 X 240/120mm & 1 X 140/120mm)
  • Fully removable 5.25″ drive cage
  • Integrated 3 Speed Fan Controller
  • Excellent GPU cooling
  • Front I/O with 2x USB 3.0, 1x USB-C and Combo jack
  • 2x 140 mm side and 3x 80 mm top fan support
  • 4x SSD support, 2x screw mount and 2x clip-in fast mounts
  • Discreet power LED bar in front

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Specifications

Capacity & configuration

Enclosure Type
Mid tower
Lighting Type
None

Dimensions & weight

Product Name
Define R5 Black Silent ATX Mid-Tower PC Case
Product Height
18.2 inches
Product Width
9.13 inches
Product Depth
20.91 inches
Product Weight
363 ounces
Maximum CPU Cooler Height
180 millimeters

Features

Brand
Fractal Design
Color
Black
Motherboard Form Factor
ATX
Maximum GPU Length
440 millimeters
Number of Expansion Slots
7
USB Port Location
Top
Number of USB Ports (Total)
4
USB Ports
2 x USB-A 2.0
Headphone Jack
Yes
Microphone Input
Yes
Window Panel(s)
None
Customizable Case Lighting
No
Number of Fans Supported
9
Cooling System
Not included
Number of Fans Included
2
Case Material
Steel
UPC
817301012584

Power & warranty

Model Number
FD-CA-DEF-R5-BK
Maximum Power Supply Length
170 millimeters
Warranty - Parts
2 years
Warranty - Labor
None

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
SPLVOct 6, 2026 · Verified purchase ★★★★★

Very Roomy, Great Airflow despite the look - Makes for an amazing 8xHDD 2x Sata SSD and 4x Nvme M.2 SSD Server depending on your Motherboard, I put plenty of Noctua 140mm Industrial 3,000 RPM fans in it and Cooler Master Metal Blade from dual fans in it and its amazing, HDD temps stay below 30 degrees and GPU takes care of itself. HBA Board has a dual Noctua 120 fans on it and regular tower cooler with dual noctua fans. Clean, quiet and powerful. Does more than just server work.

MaximoSep 16, 2026 · Verified purchase ★★★★☆

Great home for a NAS - The Define R5 was and is one of Fractal's best products (I own their Define C, Meshify C, this R5, the North, and the Terra). It has been almost a decade now since the compact Define series ditched the 5.25" bays, and most cases on the market now support only 1-2 3.5" drives. With their newer designs Fractal promises that you can buy parts and accessories like side panels and additional drive cages, but availability is scarce. The R5 has an advantage over its successors here in that it comes from the factory with the 8 3.5" drive sleds installed and all necessary mounting hardware included. And if you get creative, more 3.5" drives can be mounted on the ample floor space or in the ODD mount. This case would be a 5 star affair, but the included fan hub is 3 pin only, which isn't the biggest problem but the spacing of the headers means you can't just attach 4 pin PWM fans and use them in DC mode. Also, my R5 came with a side panel that sticks and is a bit difficult to remove so there is still some QC work to be done more than a decade after release. Overall, the R5 is from a different time in PC building and it shows, both good and bad.

DSTNMay 7, 2026 · Verified purchase ★★★★★

Modern Old School - I'm using this case for a linux server with multiple enterprise drives for network storage and container hosting. The tower looks dressed for the role compared to a mesh or glass gaming tower. It's built to reduce noise while still allowing for great airflow. Top and side panels are customizable for additional fans/airflow.

AGonzalezApr 2, 2026 · Verified purchase ★★★★★

Perfect for non rack server - Needed a case that supported several 3.5” drives but wasnt a full rack size factor. Also wanted enough space to support a CPU and GPU as well. This case does it perfectly. Able to fit air cooler and GPU and has plenty of space for all my hard drives. Would recommend

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Questions & answers

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Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
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