PCIe Gen4 U.2(SFF-8639) to M.2 NVMe Adapter

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Product Overview


  • M.2 NVMe to U.2(SFF-8639) convert
  • Built-in SFF-8639 connector, pin-out defined by SFF-9402 Rev1.1 
  • PWM synchronous buck converter Power for M.2 NVMe 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 
  • Built-in power Load Switch with controlled turn on, can support a maximun continuous current of 4A 
  • Supports CLKREQ#, WAKE# 
  • Supports M.2 /1.8V to U.2/3.3V SMB_CLK, SMBDATA Level Shift 
  • Supports M.2 /1.8V to U.2 /3.3V SMB_CLK, SMB_DATA isolated, repeater 
  • Built-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 1.3a
  • Support PCI Express Base Specification Rev 4.0 
  • Support SSD_Form_Factor_Version1_a 
  • Compliant with PCI Express M.2 Specification Version 1.2 
  • Compliant with PCIe SFF-8639 Module Specification Rev 3.0 
  • Compliant with SFF-TA-1001 Rev1.1

Supports the following form factor M.2(NGFF) SSD:

  • 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)