Product Type | Drive Converters |
Form Factor | Adapter bracket |
Power Requirements | Draws power from M.2 slot |
Color | Red |
Weight | 23 g |
For Use With | U.2 PCIe SSD (NVMe and AHCI) |
Features | Boost system performance by adding an enterprise-class U.2 PCIe NVMe SSD to your PC or server; |
Service & Support Type | 2 Years Warranty |
STARTECH M2E4SFF8643 U.2 to M.2 NVMe SSD Adapter, 2.5in Support





Key Benefits

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- Boosts desktop/server performance by enabling high-speed U.2 PCIe SSDs via M.2 interface.
- Ensures easy integration with native OS support—no need for additional drivers.
- TAA compliance and 2-year warranty make it ideal for secure and reliable enterprise deployments.
Product Overview
Add U.2 PCIe NVMe SSD performance to your desktop computer or server by connecting a U.2 SSD to an M.2 PCIe x4 host interface - U.2 to M.2 Adapter for 2.5IN U.2 NVMe SSD - Native OS support - U.2 SSD Adapter - U.2 Drive Adapter - M2 PCIe AdapterSpecifications
Product Overview
Physical & Environmental
Width | 0.8 Inch |
Height | 0.6 Inch |
Depth | 2.5 Inch |
Product Length | 64 mm |
Product Width | 20 mm |
Product Height | 15 mm |
Operating Temperature | 0°C to 50°C (32°F to 122°F) |
Storage Temperature | -25°C to 70°C (-13°F to 158°F) |
Humidity | 5% to 95% RH |
Enclosure Type | Metal |
Cloud Management & Licensing
Software/Driver Required | No (Native OS support) |
OS Compatibility | Windows, macOS, Linux – no drivers required |
Interfaces
Host Interface | M.2 PCIe x4 (M-Key, NVMe) |
Drive Interface | U.2 (SFF-8639) |
Supported Drive Type | 2.5" U.2 NVMe SSD (7mm height) |
Connector Type | SFF-8643 (Mini-SAS HD) |
Drive Form Factor Supported | 2.5in U.2 |
Bus Type | PCI Express NVMe |
Interface Bandwidth | PCIe Gen 3.0 x4, up to 32Gbps |
Compliance & Origin
TAA Compliance | Yes |
Country of Origin | Taiwan |
RoHS Compliance | Yes |
CE Certified | Yes |
FCC Compliance | Yes |
REACH Compliance | Yes |
WEEE Compliant | Yes |
Advanced Security Features
Encryption Support | Depends on SSD used |
Secure Boot Compatibility | Yes, if host system supports |