U.3 (SFF-8639) to M.2 NVMe SSD Adapter with 2.5” Enclosure

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Product Overview


  • M.2 NVMe to U.3(SFF-8639) convert
  • Build in SFF-8639 connector, pin-out defined by PCIe 
  • PWM synchronous buck converter Power for M.2 SSD
    1. 4A maximum output current
    2. Short circuit protection
    3. In-rush current suppression
    4. Thermal shutdown protection
    5. ESD HBM (Human Body Mode)/2KV
  • Supports CLKREQ#, WAKE#
  • Supports M.2 /1.8V to 3.3V SMB_CLK, SMB_DATA Level Shift
  • Supports M.2 /1.8V to 3.3V SMB_CLK, SMB_DATA isolated
  • Builde in SMBUS EEPROM 64KB
  • D1 Green LED on indicates M.2 NVMe SSD power ready
  • D3 RED LED Blinking indicates M.2 active status


  • Compliant with NVM Express 1.2 
  • Support PCI Express Base Specification Rev 3.1 
  • Support SSD_Form_Factor_Version1_a
  • Compliant with PCI Express M.2 Specification Version 1.0 
  • Compliant with PCIe_SFF-8639_R3.0_V1.0 
  • Compliant with SFF-TA-1001 Rev1.1

Support M.2(NGFF) SSD Form factor

Type 2242-D2-B-M: 42mm(L) x 22mm(W) 

Type 2260-D2-B-M: 60mm(L) x 22mm(W) 

Type 2280-D2-B-M: 80mm(L) x 22mm(W)