Qnap qfinder pro mac ts 2518/7/2023 ![]() ![]() Note that quite a few NASes at the top of both charts are clustered around 110 MB/s. The File Copy Write test for the two-bay test TS-251A-4G was 100.4 MB/s and the TS-451A-4G turned in 102.6 MB/s. The composite image below shows how the TS-251A-4G and the TS-451A-4G compare to other products for File Copy Write Performance. The fan was virtually silent, even during testing. Noise level with both two and four drives was low, with a bit more drive noise with four drives. Spin up / down consumption for two drives was 16 W and 10 W, respectively. Power consumption with four drives was 27 W with all drives spun up, dropping to 13 W with all spun down. All tests were run using Western Digital Red 1 TB (WD10EFRX) drives (x2 / x4 SNB supplied). The TS-251A-4G tests used two drives in single RAID 0 and 1 volumes. The TS-451A-4G tests used four drives configured in single RAID 0, 5 and 10 volumes. Since the TS-251A-4G uses the same processor, RAM and Ethernet components, all testing was done on the TS-451A-4G. QTS 4.2.2 Build 20160812 firmware was loaded onto a TS-451A-4G and performance tests were run using the Revision 5 NAS test process. Other new features include USB QuickAccess, hardware-assisted AES encryption, and real-time 4K and 1080p transcoding. QNAP QTS 4.2.2 Control panel (l) and Resource monitor (r) QNAP provides a live demo, so you can connect to a demo server and explore features (read-only) yourself. Below are a couple of screenshots that show the landing page, the control panel and the resource monitor. QTS 4.2 features an improved user interface. QNAP’s site also provides a link to a 124-page brochure that details all of the features of QTS 4.2.2. QNAP provides a good overview of the features of QTS 4.2. We did an in-depth review of QTS 4.1 about the same time as the original TS-x51 models were reviewed. The TS-x51A runs the latest version of QNAP’s operating system – QTS 4.2.2. Table 1: Key component summary and comparison Features ![]() TI DP138 DisplayPort to TMDS level shifter Intel Celeron J1800 dual-core processor 2.41 GHz (Bay Trail D)Ģ GB DDR3 SoDIMM (x2) Īsmedia ASM1062 (x1 for TS-451 on drive backplane) Table 1 summarizes key components for the TS-251A / TS-451A with those for the non-A versions. A Realtek RTL8111E Gigabit Ethernet controller sits close by it, so I’m guessing it’s also involved in the QuickAccess port’s function. The USB QuickAccess port is generated by a Realtek RTL8153 Integrated 10/100/1000M Ethernet Controller for USB Applications. The TS-451A’s drive backplane holds a single Asmedia ASM1062 PCIe 2 port SATA controller, which is probably absent on the two-bay TS-251A. I couldn’t find the flash DoM module QNAP typically uses. Two Kingston DDR3L 2 GB SoDIMMs are used for memory. I wasn’t able to find any information on how to upgrade RAM, but this is how you get to the RAM, since it’s not accessible otherwise.īoth the TS-251A and TS-451A are powered by a 1.6 GHz Intel Celeron N3060 dual-core processor, sitting under the heatsink in the photo below. TS-451A disassembly is similar to the TS-451 you remove the cover, remove the screws securing the drive cage and backplane and lift it off. QNAP TS-x51 and TS-X51A feature comparison Though the case sizes and configuration remain the same, the new models have a teal colored strip along the left side of the front panel. The chart below shows a comparison between the original TS-x51 series and the new TS-x51A models. This provides the convenience of direct-attach storage, but without DAS performance. Essentially, you get a USB port that looks, behaves and performs like a Gigabit Ethernet port, but using USB 3.0, not Ethernet. The blurb below snatched from the A series product page provides the gist of the feature. The big innovation the A series brings is what QNAP has dubbed a USB QuickAccess port. Both models use the same Intel N3060 Celeron dual core processor, are also available in a 2 GB versions (TS-251A-2G and TS-451A-2G) and can be upgraded to 8 GB of RAM total. As in the past, we had QNAP send the four-bay TS-451A-4G, which we loaded with only two drives to generate data for the TS-251A. This brings us to the TS-x51A family we’re looking at today. Since then, QNAP followed up with the TS-x51+, based on a 2 GHz quad-core Intel Celeron J1900 processor, which we didn’t review. We reviewed the original TS-x51 series around two years ago. QNAP’s TS-x51 series is a mainstay of its Home and SOHO product family. ![]()
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