Specification Sheet

24
Category Order No. Description
Expansion units
UX-500P
QNAP 5-bay Expansion unit
185.2 (H) x 210.6 (W) x 235.4 (D) mm
7.29 (H) x 8.29 (W) x 9.27 (D) inch, 5.1 kg / 11.24 lbs
UX-800P
QNAP 8-bay Expansion unit
185.2 (H) x 298.2 (W) x 235.4 (D) mm
7.29 (H) x 11.74 (W) x 9.27 (D) inch, 7.3 kg / 16.08 lbs
RAM
RAM-2GDR3L-SO-1600 2GB DDR3 RAM, 1600 MHz, SO-DIMM
RAM-4GDR3L-SO-1600 4GB DDR3 RAM, 1600 MHz, SO-DIMM
RAM-8GDR3L-SO-1600 8GB DDR3 RAM, 1600 MHz, SO-DIMM
Remote control
RM-IR002 QNAP IR-002 remote conyrol (included)
Model
TS-251
+
-2G TS-251
+
-8G TS-451
+
-2G TS-451
+
-8G
CPU Intel® Celeron® Quad-core 2.0GHz (up to 2.42GHz)
Floating Point Unit
Hardware-Acclerated Transcoding
GPU Intel® HD Graphics
System memory 2GB (2 x 1GB) 8GB (2 x 4GB) 2GB (2 x 1 GB) 8GB (2 x 4GB)
Memory expandable up to
8GB
NOTE : To install on both DIMM slots, the same type of memory same size, speed, and manufacturer should be
used for each slot
Total memory slots 2
Flash Memory 512MB (DOM)
Max. number of HDDs/SSDs 2 4
Compatible Drive Type 3.5" or 2.5" SATA 6Gb/s, 3Gb/s HDD or SSD, hot swappable
LAN Port 2 Gigabit RJ-45 Ethernet ports, supporting port trunking
USB 2 x USB 3.0 (Front: 1, Rear: 1) & 2 x USB 2.0 (Rear)
LED Indicators Power/Status, LAN, USB, HDD
Buttons Power, USB One-Touch-Backup, Reset
IR Yes (RM-IR002 & MCE)
HDMI 1
Alarm Buzzer System warning
Form Factor Tower
Dimensions 168.5 x 102 x 225 mm / 6.63 x 4.02 x 8.86 inch (HxWxD) 177 x 180 x 235 mm / 6.97 x 7.09 x 9.25 inch
Weight (Net / Gross) 1.28 kg (2.82 lbs) / 2.32 kg (5.11 lbs) 3 kg (6.61 lbs) / 4.3 kg (9.48 lbs)
Power Consumption (W) HDD standby:10.56W / In operation (typical): 18.09W HDD standby:15.78W / In operation (typical): 33.88W
Operating Temperature 0 - 40 °C
relative humidity 5~95% RH non-condensing, wet bulb: 27°C
Power Supply External Power Adapter, 60W, 100-240V External Power Adapter, 90W, 100-240V
Fan 1 x quiet cooling fan (7cm,12V DC) 1 x quiet cooling fan (12cm,12V DC)
Windows® sequential Read / Write
(64KB, 2 x GbE)
223 / 225 225 / 224
Windows® sequential Read / Write
Encryption (64KB, 2 x GbE)
205 / 178 204 / 158
Hardware
specification
Accessories
Designs and specifications are subject to change without notice.