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Application for QM2 SSD slots:
- Create a volume on these SSD and use them as extra storage
- Enable Read Cache
- Enable Read/Write Cache
- Enable Qtier feature
- Boost performance in case of memory swapping
THIS PRODUCT IS NOW EOL. THE SUGGESTED REPLACEMENT IS THE NEW TS-251D-4G.
QNAP TS-251B 2-Bay Home/SOHO NAS with PCIe Expansion. Intel Dual Core 2.0GHz, 4GB RAM, 2 x SATA 6G, 1 x GbE LAN, 1 x PCIe Slot for 10GbE/M.2 SSD with QM2 card, AES-NI Encryption, Hardware Video Transcoding
The TS-251B combines secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251B is QNAP’s first home/SOHO NAS that allows you to flexibly extend its functionality and potential applications. You can install a QNAP QM2 card to provide M.2 SSD caching/10GbE connectivity and use with Qtier auto-tiering storage to enhance overall system performance; or install a wireless network card (such as the QNAP QWA-AC2600) to turn the TS-251B into a wireless access point and to wirelessly stream your multimedia throughout your home. The TS-251B supports dual-channel H.264 hardware decoding and transcoding, allowing you to enjoy watching NAS media files smoothly across various devices.
|CPU||Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
Architecture: 64-bit x86
|Graphics||Intel® HD Graphics 500|
|System Memory||4 GB DDR3L (2 x 2 GB)|
|Maximum Memory||8 GB (2 x 4 GB)|
|Memory Slot||2 x SODIMM DDR3L up to 1866, with dual-channel support|
|Flash Memory||4GB eMMC|
|Drive Bay||2 x 3.5" SATA 6 Gbps HDD|
|Drive Compatibility||• 3.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s SSD
|SSD Cache Acceleration Support||3.5" drive bay：1 to 2|
|Gigabit Ethernet Port||1 x RJ45|
|USB Port||2 x USB 3.0, 3 x USB 2.0|
|USB One Touch Copy||Front：USB 3.0 Type-A|
|PCIe Slot||1 PCIe 2.0 x2 slot|
|HDMI Output||1 x HDMI v1.4b (up to 3840 x 2160 resolution at 30 Hz)|
|IR sensor||, supporting QNAP RM-IR004 remote control (optional purchase)|
|Audio||1 x speaker, 2 x MIC Input
1 x 3.5 mm line-out jack
Note: You cannot use the speakers and the line-out jack simultaneously.
|LED Indicators||Status/power、LAN、USB、HDD 1 - 2|
|Buttons||Power, Reset, USB One-touch-copy|
|System Warning||Alarm buzzer and voice prompts|
|Dimensions (H x W x D)||168 x 105 x 226 mm ( 6.61 x 4.13 x 8.90 inch)|
|Net Weight||1.53 kg (3.37 lbs)|
|Power Consumption (W)||HDD standby：8.08 W
In operation：15.25 W
(with 2 x 1TB HDDs installed)
|Sound Level||Sound pressure (LpAm): 17.3 dB(A)|
|Power Supply Unit||65W AC adapter, 100-240V|
|Fan||1 x 7 cm|
|Operating Temperature & Relative Humidity||0 ~ 40˚C ( 32˚F ~ 104˚F ), 5 ~ 95% RH non-condensing, wet bulb: 27˚C (80.6˚F)|
|Other Interfaces||Kensington security slot|
Application for QM2 SSD slots:
Configured system orders start here!
The selected drives are batch controlled and tested using our HDD and SSD servers. Passed drives are then installed in the NAS with Volume and RAID set. Our pre-burn testing prepares the NAS with an initial system and drive testing cycle to ensure that the integrity of the entire system is tested and passed with no issues at all.
Our stress testing (burn-test) cycle commences for a minimum of 24 hours and extends to 48 hours if requested or required. This is undertaken in order to ensure stability when used in a normal environment. These tests can include extremes of workload (constant I/O's), CPU and memory use, thermal load (heat), clock speed, or voltages, bus and connectivity components, with the primary stress testing software aiming to test stability by trying to force a system to fail. Our tests put a greater emphasis on robustness, availability and error handling heavy loads.
Once the tests are complete we QA and pack the system back into it's retail box. Then it's double boxed to protect the unit during shipping. You receive your QNAP NAS Ready To Plug 'N' Store. It doesn't get any easier. Buy your NAS from the QNAP EXPERTS at QNAP DIRECT.