TS-451 High-performance NAS with one-the-fly & offline video transcoding for SOHO and home users Features -Transcode Full HD videos on-the-fly or offline -Play 1080p videos with 7.1 channel surround sound pass-through via HDMI output -Create a personal cloud and stream your multimedia library via DLNA, AirPlay, and Plex -Centralize your file storage, sharing and backup -Run a virtual machine and extend the functionality of the NAS with an integrated virtualization solution -Expand the total raw storage capacity up to 60TB (with maximum 12 hard drives) with the economical QNAP expansion enclosure UX-800P Hardware specification CPU Intel® Celeron® 2.41GHz dual-core processor (burst up to 2.58GHz) DRAM 1GB DDR3L RAM (expandable up to 8GB) Flash Memory 512MB DOM Hard Disk Drive 4 x 3.5” or 2.5” SATA 6Gb/s, SATA 3Gb/s hard drive or SSD Hard Disk Tray 4 x Hot-swappable tray LAN Port 2 x Gigabit RJ-45 Ethernet port LED Indicators Status, LAN, USB, HDD 1-4 USB 2 x USB 3.0 port (Front: 1, Rear: 1) 2 x USB 2.0 port (Rear: 2) Support USB printer, pen drive, and USB UPS etc. HDMI 1 Buttons Power/Status, USB One-Touch-Backup, reset Alarm Buzzer System warning Form Factor Tower Dimensions 177(H) x 180(W) x 235(D) mm 6.97(H) x 7.09(W) x 9.25(D) inch Weight: Net: 3 kg (6.61 lbs) / Gross: 4.3 kg (9.48 lbs) Power Consumption (W) HDD standby: 15.85W S3 sleep: 0.55W In operation: 31.07W (with 4 x 1TB HDD installed) Temperature 0-40°C Humidity 5~95% RH non-condensing, wet bulb: 27°C. Power Supply External Power Adapter, 90W, 100-240V Secure Design Kensington security slot for theft prevention Fan 1 x quiet cooling fan (12 cm, 12V DC)