My Cloud Hard Drive Compatibility Matrix

• CMR and SMR drives are supported.
• My Cloud (Single Bay) cannot be serviced.
• 4Kn (native) sector drives are NOT supported.
  They MUST NOT be used..
  
  

  WD Red, Red Plus, and Red Pro drives support 512-byte emulation (512e). Advanced format drives have models with 512-byte emulation (512e) for backward compatibility.

Need more help?

• Answer ID 20968: Internal Drive Advanced Format 4k Sector Size Support and Information
• Answer ID 29458: WD Red Internal HDD SMR and CMR Network Attached Storage (NAS) Drive Information
• Answer ID 15992: Steps to Replace Internal Drives in a 2 and 4 Bay My Cloud

Supported Drives

Select a model to see the drives.

• My Cloud Mirror
• My Cloud Mirror Gen 2
• My Cloud EX2
• My Cloud EX2 Ultra
• My Cloud EX4
• My Cloud EX2100
• My Cloud EX4100
• My Cloud DL2100
• My Cloud DL4100
• My Cloud PR2100
• My Cloud PR4100