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Raidon Technology Introduces UBOX Micro M.2 NVMe to 2.5-Inch U.2 NVMe High-Performance Adapter

Compliant with U.2 (SFF-8639) specifications and support PCIe x 4 NVMe, transforms standard M.2 2280 NVMe SSD (22x80mm) into 7mm-thick 2.5” U.2 NVMe SSD

Raidon Technology, Inc. announces the Stardom UBOX Micro, a M.2 NVMe SSD to 2.5″ U.2 NVMe SSD (7mm) performance adapter.

2025 10 06 Raidon Ubox Micro Intro

UBOX Micro is a compact and high-performance adapter that transforms a standard M.2 2280 NVMe SSD (22×80 mm) into a 7mm-thick, 2.5″ U.2 NVMe SSD. It provides a flexible and durable upgrade solution for servers, workstations, and embedded or industrial systems that rely on U.2 bays and backplanes. Compliant with U.2 (SFF-8639) specifications and support PCIe x 4 NVMe, UBOX Micro makes you easy to install fast M.2 storage in hot-swap systems of U.2.

2025 10 06 Raidon Ubox Micro 1 Key Features:

  • Ultra-Thin 7mm Design
    Converts an M.2 2280 NVMe SSD into a standard 2.5″ U.2 NVMe SSD (7mm z-height) and ideal for compact systems and dense storage bays.
  • Optimized for 2280 NVMe
    Secure and stable mounting for standard M.2 2280 (22×80 mm) NVMe drives.
  • Service-Friendly Upgrades
    Swap M.2 NVMe SSDs using existing U.2 trays, backplanes, or mobile racks, and no new hardware required.
  • Standards-Based U.2 Interface (SFF-8639)
    Matches U.2 size, port placement, and electrical specifications for plug-and-play integration with U.2 systems

2025 10 06 Raidon Ubox Micro Interface

  • High-Speed Performance (Up to 40Gb)
    NVMe over PCIe delivers fast speeds with low delay. U.2 supports up to 4 PCIe lanes for high-performance use. Actual speed depends on the PCIe version and setup of your system.
  • Metal Enclosure with Passive Cooling
    Durable housing protects the SSD in harsh or vibration environments and improves heat transfer to reduce slowdowns during the heavy use

2025 10 06 Raidon Ubox Micro 4

  • Integrated Thermal Management
    Installed thermal pads help to transfer heat away from the SSD controller and NAND chips, so the drive can keep running at fast speed during heavy use

Benefits:

  • Plug-and-Play U.2 Support
    Works with standard U.2 bays for easy hot-swap and maintenance – perfect for scaling.
  • Consistent High Performance
    Metal chassis and thermal pads prevent overheating, ensuring stable speeds during heavy use.
  • Durable, Easy-to-Handle Design
    Protects M.2 SSDs in a rugged 2.5″ form – ideal for labeling, tracking, and quick replacements.
  • Cost-Efficient Upgrades
    Use existing U.2 infrastructure with M.2 SSDs to save money and expand hardware options.
     
  • Possible Applications: Enterprise and Cloud Servers
    Using NVMe as boot drives, cache, or hot-swap storage with existing U.2 setups
  • Pro Workstations
    Ideal for 8K video, VFX, or CAD work with easy to service U.2 drives
  • AI/ML and HPC Systems
    Fast and reliable storage for datasets, feature stores, and model checkpoints
  • Edge and Industrial PCs
    Rugged 2.5″ storage for factories, transport, and telecom environments
  • Labs and Homelabs
    Tidy U.2 drive bays with affordable M.2 NVMe SSDs
     

2025 10 06 Raidon Ubox Micro 5p

Comparison:

Attribute

UBOX Micro (M.2→U.2)

Native U.2 NVMe SSD

Bare M.2 on riser/cable

Interface / lanes

U.2 (SFF-8639), PCIe x4 NVMe

U.2 (SFF-8639), PCIe x4 NVMe

Varies (M.2 socket or cabled PCIe)

Typical bandwidth ceiling

Host-dependent; up to Gen4 x4 ~64 Gb theoretical

Host-dependent; up to Gen4 x4 ~64 Gb theoretical

Host-dependent; may match Gen4 x4 but serviceability varies

Serviceability

2.5″ hot-swap workflows, drive trays

2.5″ hot-swap workflows, drive trays

Usually non-hot-swap; board access required

Thermal design

Metal enclosure + thermal pads (passive)

Vendor-specific thermal casing

Heatsink-only or bare

Mechanical

7mm 2.5″ bay compatible

7mm/15mm variants exist

Board-level; no 2.5″ bay fit

When to choose

Reuse U.2 cages; mix-and-match M.2 inventory

Pure U.2 fleets and vendor-locked specs

Lab builds or space-permissive rigs

 
Specs:

Specification

Details

Model No.

UBOX Micro (M.2 NVMe Converter)

Converted Drive Support

M-key M.2 2280 NVMe SSD (NVMe protocol). Not for M.2 SATA.

Host Interface

U.2 (SFF-8639); up to PCIe x4 NVMe pass-through. Hot-swap support is defined
by the chassis/backplane.

Form Factor / Z-Height

2.5-inch U.2, 7mm

Interfaces (Ports)

1×SFF-8639 (U.2)

Storage Mode

JBOD – Independent Mode (no RAID)

Dimensions

70 (W) × 109 (L) × 7 (H) mm

OSs

Windows, Linux

Electrical and Operating Requirements

Line voltage: 12V + 5V DC (typical for U.2) • Operating temp: 32–104 °F (0–40 °C) • Storage temp: −4–116 °F (−20–47 °C) • Humidity: 5–95% non-condensing

 
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