Synology DiskStation 2-Bay (Diskless) Network Attached Storage DS212j (White) DLNA Certified Media Server 24/7 Power-Saving Download Server Effortless Backup, 100V to 240V AC Anywhere Access Power-saving with only 17.6 Watts in Operation CPU Frequency: 1.2GHz Memory: DDR2 256MB Internal HDD: 2x 3.5" or 2.5" SATA2 (w/ Disk Holder, Hard Drive not included) External HDD Interface: 2x USB 2.0 Ports LAN: 1x Gigabit Noise Level: 18.3 dB(A)