Synology DiskStation DS1817 SAN/NAS Storage System. This system comes with an upgrade to total of 8GB RAM installed. 2x 1GB RJ45 LAN and 2x10GB With a USB 3.0 specification and an eSATA interface, you can easily connect the system to your computer and transfer files quickly. The Synology DiskStation DS1817 also features hot plug support, hot swap, password protection, and an in-built media server. Additionally, it has a low noise level, temperature sensor, and an auto power on/off feature. The system is compatible with Time Machine and also offers remote access and cloud storage. With its sleek black design, this external drive is perfect for your network attached storage needs. RAM upgraded from 4GB to 8GB otherwise all system specs are as default found here