Synology’s DiskStation DS1520 is a 5-bay NAS designed for small offices and IT enthusiasts featuring a pair of M.2 NVMe slots for SSD caching and four Gigabit Ethernet ports.
Powered by an Intel Celeron J4125 quad-core processor clocked at 2.0GHz (burst up to 2.7GHz) the DiskStation DS1520 comes with 8GB of DDR4-2666MHz memory which is the most the motherboard supports. It also supports an AES-NI hardware encryption engine.
Synology quote Sequential throughput performance for the D1520 as up to 451.28MB/s for reads and 451.18MB/s for writes although those figures are from the NAS being tested with all four LAN ports being used in Link Aggregation mode. As well as the four network ports the DS1520 sports a pair of NVMe supporting M.2 slots for cache duties.
Synology back the DS1520 with a 3-year warranty.
Processor: Intel Celeron J4125 (2.0 (base) / 2.7 (burst) GHz).
Memory: 8GB DDR4-2666.
Gigabit Ethernet Ports: 4
Rear panel connectors: 2 x eSATA, 1 x USB 3.0.
Front panel connectors: 1 x USB 3.0.
RAID support: Synology Hybrid RAID, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10.
Cooling: Active – 2 x 92mm.
Drive Bays Supported: 5.
Maximum hard drive size supported: 16TB.
Maximum Capacity: 80TB.
Maximum single volume size: 108TB.
M.2 drive slots: 2 x NVMe.
Internal File System support: Btrfs, EXT4.
Dimensions (D x W x H): 223 x 230 x 166 mm.