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Turbo NAS Model
TS-251-4G / TS-251
TS-451-4G / TS-451
CPU
Dual-Core Intel Celeron 2.41GHz (Burst up to 2.58GHz)
Memory (DRAM)
4GB SO-DIMM DDR3L-1333 / 1GB SO-DIMM DDR3L-1333
Flash Memory
512MB (DOM)
No. of RAM Slots
2 (Max 8 GB)
Max. number of HDDs/SSDs
2 x 2.5" or 3.5" SATA 6Gb/s, 3Gb/s; hot-swappable
4 x 2.5" or 3.5" SATA 6Gb/s, 3Gb/s; hot-swappable
6 x 2.5" or 3.5" SATA 6Gb/s, 3Gb/s; hot-swappable
Expansion Enclosure Support
1 (UX-800P, UX-500P)
Gigabit LAN Ports
2
TS-851-4G / TS-851
8 x 2.5" or 3.5" SATA 6Gb/s, 3Gb/s; hot-swappable
USB Ports
USB 3.0: 2, USB 2.0: 2
USB 3.0: 2, USB 2.0: 2
USB 3.0: 3, USB 2.0: 2
USB 3.0: 3, USB 2.0: 2
IR Sensor (MCE Remote)
Yes
Yes
Yes
Yes
HDMI
1
1
1
1
LED Indicators
Power, Reset, USB OneTouch-CopyҷUSBҷ HDD12
Power, Reset, USB OneTouch-CopyҷUSBҷHDD14
Power, Reset, USB OneTouch-CopyҷUSBҷHDD 1-6
Power, Reset, USB OneTouch-CopyҷUSBҷHDD 1-8
Buttons
47
TS-651-4G / TS-651
Power, Reset, USB One-Touch-Copy
Dimensions (HxWxD)
168.5 x 102 x 225 mm 6.63 x 4.02 x 8.86 inch
177 x 180 x 235 mm 6.97 x 7.09 x 9.25 inch
175 x 257 x 235 mm 6.89 x10.12 x 9.25 inch
185.2 x 298.2 x 235.4 mm 7.29 x 11.74 x 9.27 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)
6.18 kg (13.62 lbs) / 6.9 kg (15.21 lbs)
7.83 kg (17.26 lbs) / 8.9 kg (19.62 lbs)
Temperature and Humidity
0 - 40 ƱC, 5 - 95% R.H
0 - 40 ƱC, 5 - 95% R.H
0 - 40 ƱC, 5 - 95% R.H
0 - 40 ƱC, 5 - 95% R.H
Power Supply Specification
External Power Adapter, 60W, 100-240V
External Power Adapter, 90W, 100-240V
ATX 250W, Input: 110-240 Vac~, 50-60Hz, 5A
ATX 350W, Input: 110-240 Vac~, 50-60Hz, 5A
Power Consumption: HDD Sleep (W)
10.28
15.85
21.08
26.81
Power Consumption: Typical Operation (W)
19.22
31.07
39.42
56.79
Power Off: S3 Sleep (W)
0.47
0.55
0.41
0.72
Windows Upload / Download Link Aggregation (MB/s)
222 / 224
216 / 224
223 / 224
223 / 224
AES 256-bit Encrypted Windows Upload / Download (MB/s)
67 / 68
68 / 68
68 / 69
68 / 69
File System: Internal Hard Drive
EXT4
File System: External Hard Drive
EXT3, EXT4, NTFS, FAT32, HFS+
RAID Recovery
Yes
Online RAID Capacity Expansion
Yes
Online RAID Level Migration
Yes
RAID Type
Single Disk, RAID 0, RAID 1, JBOD
Global Hot Spare
-
Single Disk, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 5 + Spare, JBOD
Single Disk, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 5/6/10 + Spare, JBOD Yes
USB One-Touch-Copy Backup
Yes
Surveillance Station - Default IP Cameras
2
Virtualization Station - Max. IP cameras
24(optional license purchase)
Virtualization Station
Yes (Max. 1 Runnung VM; RAM of NAS >= 2GB)
VPN Server (PPTP + OpenVPN)
Yes
Max. Number of Users
4096
Max. Number of User Groups
512
Max. Number of Shared Folders
512
Max. Number of Concurrent Connections
600
TS-x51 Series. Powered by QNAP's Exclusive QvPC Technology
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* Not all services are supported. ** The data encryption functions may not available in accordance with the legislative restrictions of some countries. *** The supported features may vary among models. Design and specifications are subject to change without notice.
Surveillance Station Ńù|hhZkwoZk2,700 IP cameras ŃÅRK|o2 free camera licenses, up to 24 camera channels via additional license purchase ŃÅRowRwhKGwZ3Gw3kRwRw Ńđ7o|K7ńQh ŃòKGRohZRwkZKo3|wwKk Ńđ7Zhk7ZRhKGw7QK7R Ń ÅRwKK7,Rw 7Z RKw7o řÅđŚ )Zk R video search
48 TS-x51 Series. Powered by QNAP's Exclusive QvPC Technology