DiskStation DS918+

CPU Intel Celeron J3455
Hardware encryption engine (AES-NI)
Hardware transcoding engine Supported codec:
H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1;
maximum resolution: 4K (4096 x 2160);
maximum frame rate per second (FPS): 30
System Memory: 4 GB DDR3L          
Total Memory Slots: 2
Memory Expandable up to 8 GB (4 GB x 2)
Storage Drive Bays : 4       
Maximum Drive Bays with Expansion Unit: 9
Hot swappable drive
External ports USB 3.0 ports x 2; RJ-45 1GbE LAN Port x 2; eSATA Port x1
Size (HxWxD) 166 mm x 199 mm x 223 mm
Weight 2.28 kg