QNAP 

QNAP QDA-UMP4 M.2 2280 PCIE NVME GEN4X4TOU.2 PCIE NVME GEN4 X4 CONVERTER/ADAPTER

Mfg Part Number:  QDA-UMP4  
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Price: $94.99
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Feb 10, 2026
No Sales Tax except these states
, PO and Wire.

The QDA-UMP4 allows installing an M.2 PCIe 4.0 x4 NVMe SSD in a 2.5-inch U.2 (SFF-8639) PCIe 4.0 x4 NVMe SSD drive bay. No extra software or drivers are required for the QDA-UMP4 and it can be installed in a PC/workstation (Windows®, Linux®) or QNAP NAS to enable using M.2 SSDs as cost-effective alternatives to expensive U.2 SSDs.

  • 1 Use an M.2 2280 (M key) PCIe NVMe SSD in a U.2 PCIe NVMe SSD drive bay (M.2 SSD sold separately).
  • 2 Up to PCIe 4.0 x4 file transfer speeds.(Compatible with NVMe PCIe 3.0 for M.2 SSDs and U.2 drive bays)

Architecture diagram

High-quality construction for better heat dissipation

The M.2 SSD thermal pads and aluminum-alloy metal frame assist in dissipating heat from the M.2 SSD to ensure high performance.

Install in a PC/workstation for higher performance with lower costs

By using the QDA-UMP4 to install a M.2 SSD in the 2.5-inch U.2 SSD tray of a high-end PC/workstation (Windows® or Linux®), you can obtain a more budget-friendly way to supercharge bandwidth-demanding applications (such as on-the-fly video editing, server-grade applications, or online gaming). The status of the installed SSDs can be monitored using your preferred monitoring tool (such as manufacturer-provided utilities or third-party software like CrystalDiskInfo).

Install in QNAP NAS for efficient yet cost-effective storage

By allowing you to use M.2 SSDs instead of U.2 SSDs, the QDA-UMP4 enables you to optimize data-intensive applications in more cost-effective way. It can also boost IOPS performance when configuring SSD caching. Users can monitor drive health and manage SSD usage from the QTS Storage & Snapshots Manager.

Maintain high performance with cost savings

Using the QDA-UMP4 enables using M.2 NVMe SSDs as alternatives to U.2 NVMe SSDs, ensuring high-level performance at a more cost-effective price point.

Main Specification
General Information
Manufacturer QNAP Systems
Manufacturer Part Number QDA-UMP4
Manufacturer Website Address http://www.qnap.com
Brand Name QNAP
Product Name QDA-UMP4 Drive Enclosure
Product Type Drive Enclosure
Technical Information
Number of Solid State Drive Supported 1
Number of Solid State Drive Installed 0
I/O Expansions
Number of Total Expansion Bays 1
Number of 2.5" Bays 1
Interfaces/Ports
Drive Interface PCI Express NVMe 4.0 x4
Host Interface U.2 (SFF-8639)
Physical Characteristics
Product Material Aluminum Alloy
Product Material Metal
Form Factor Internal
Height 0.6"
Width 2.8"
Depth 4"
Weight (Approximate) 3.69 oz
Miscellaneous
Compatibility
  • PC
  • Workstation
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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