Synology DS1522 PLUS

5-bay DiskStation (up to 15-bay), AMD Ryzen R1600 (Dual-Core/ 2.6 GHz (turbo to 3.1 GHz)), 8GB DDR4 ECC SODIMM (Max. 32GB), 2 x M.2 NVMe SSD, 4x1GbE Base T, Supports E10G22-T1-Mini 10GbE RJ-45 Network Upgrade Module (Optional), Warranty 3 Yrs. RMA (ต่อประกันได้เป็น 5 ปี(EW201)) - Disk Size : SATA HDD 2.5", 3.5" (Hot-Swap) : SATA SSD 2.5" (Hot-Swap) - M.2 2280 NVMe : 2 Slots Built-in - RAM : 8 GB DDR4 ECC SODIMM (Max. 32 GB (xx GB x2)) - USB 3.2 Gen 1 : 2 Ports - RJ45 1 GbE LAN : 4 Ports - RJ45 10 GbE LAN (Optional) : E10G22-T1-Mini 10GbE RJ-45 - Surveillance Station : Max. IP Cameras: 40 (Free 2)

Synology DS420j

4-bay DiskStation, Realtek RTD 1296 (4 Core/ 1.4 GHz), 1GB DDR4, 1x1GbE Base T, Warranty 2 Yrs. RMA - Disk Size : SATA HDD 2.5", 3.5" : SATA SSD 2.5" - RAM : 1 GB DDR4 non-ECC, 1 Slot - USB 3.0 : 2 Ports - RJ45 1 GbE LAN : 1 Port - Surveillance Station : Max. IP Cameras: 16 (Including 2 Free Lic.)