DS420+ 4-Bay / Intel Celeron J4025 / Dual Core 2.0GHz ( Up to 2.9GHz )/ 2GB DDR4 Non-ECC ( up to 6GB Non-ECC SO-DIMM )/ 4K Hardware Transcoding Engine / 2 x M.2 NVMe 2280 SSD Slot / 2 x USB 3.0 / 2 x Gigabit LAN / SHR, RAID 0,1 / Synology High Availability / 2 x IP Cam Licenses (up to 25) / 3 Years Warranty