Hard Disk Compatibility List
The products with RAID array require high stability. The following dedicated NAS hard disks are recommended to be used in the devices with RAID array. 
 SATA III/ SATA II (6Gb/s,3Gb/s) 
Brand Model  Capacity Type Level Note
   Seagate ST4000VN000  4000 3.5" SATA HDD NAS Recommend 
   Seagate ST3000VN000  3000 3.5" SATA HDD NAS Recommend 
   Seagate ST2000VN000 2000 3.5" SATA HDD NAS Recommend 
   Seagate ST10000VN0004 10000 3.5" SATA HDD NAS Recommend 
   Seagate ST2000DX002 2000 3.5" SATA HDD NAS Recommend 
   Seagate ST4000VN008 4000 3.5" SATA HDD NAS Recommend 
Western Digital WD60EFRX 6000 3.5" SATA HDD NAS  Recommend 
Western Digital WD40EFRX 4000 3.5" SATA HDD NAS  Recommend 
Western Digital WD30EFRX 3000 3.5" SATA HDD NAS  Recommend 
Western Digital WD20EFRX 2000 3.5" SATA HDD NAS Recommend 
Note:  Hard disks are consumables and may damage without warning. Please back up your NAS data in order to ensure data security.