Synology RS820RP+ 4 Bay NAS (2GB) 
CPU Model: Intel Atom C3538
CPU Architecture: 64-bit
CPU Frequency: Quad Core 2.1 GHz
System Memory: 2 GB DDR4
Memory Module Pre-installed: 2GB (1 x 2GB) (can up to 18GB (2GB+16GB)
Total Memory Slots: 1
Drive Bays: 4
Maximum Drive Bays with Expansion Unit: 8
Compatible Drive Type* (See all supported drives): 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD
Maximum Internal Raw Capacity : 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units : 128 TB (64 TB + 16 TB drive x 4) (Capacity may vary by RAID types)

_Warranty : 3 years

#FOR SPECIAL PRICE, CONTACT 012599779