DS620slim 6-Bay (2.5" HDD/SSD only) / Intel Celeron J3355 / Dual Core 2GHz ( Up to 2.5GHz )/ 2GB DDR3 (up to 6GB) / 2 channles 4K Hardware Transcoding Engine / 2 x USB 3.0 / 2 x Gigabit LAN / SHR, RAID 0,1,5,6,10 / 2 x IP Cam Licenses (up to 25) / 2 Years Warranty