![]() SSDs are capable of saturating SATAIII with sequential accesses and even random access still more than doubles GBe link speeds. Some may want the data security and backup a NAS provides without the hassle of dealing with it on a local machine, but still want the device to “feel” like a local device. A high speed network attached storage allows them to locate their data elsewhere while functioning quickly enough to be perceived as a local device. Asus pce ac68 sale Pc#Some people want a small and/or quiet PC setup. There are, in fact, legitimate reasons to do so even if they aren’t common. Strange as it may sound, there are people who want high speed network attached storage. Again, a single GBe link will not suffice. Leaving the practicality aside (particularly for ZIL) these caches have the potential to increase bandwidth and, more importantly, reduce latency for any requests that are serviced by these caches. ![]() There are some enthusiasts who make use of L2ARC and/or ZIL caches. For requests that can be serviced from this cache, even 10GBe is woefully slow. In DIY Linux or BSD based NAS units and likely many commercial units as well, the system makes use of available RAM to speed up access to recently or commonly accessed data. Whether one person or several people access multiple volumes, the lack of a higher speed link once again leaves performance on the table. While the disk arrays are independent of each other, they are still constrained to the same GBe link. It is not uncommon to see more than one volume in a NAS. Other RAID modes are less likely to be used (and sometimes ill advised), but RAID0/5/6/Z1/Z2 all fall into the category of usable modes that increase both read and write performance of the array and exposing the limits of a single GBe link. Given a common read heavy load and an interface that constrains the bandwidth of a single disk, a lot of performance is left on the table. While disk writes end up the same as a single disk, disk reads can be up to twice as fast. It is entirely possible and not unlikely that someone with a NAS uses disk mirroring. Now, you don’t loose a lot of speed here and it is arguably not noticable, but lets introduce some practical scenarios to the mix. More realistically, you get around 950Mbps ~= 119MBps. ![]() There are plenty of single HDDs that exceed this rate for sequential transfers. Gigabit ethernet theoretically caps out at 1Gbps = 125MBps. Since the PCE-AC67 is a 3×3 antenna board, we'd expect the PCE-AC88 and its 4×4 configuration to fetch a significant premium. None of the usual online retail suspects have listed the board for sale yet, but Anandtech points out that the board’s little brother, the PCE-AC68, sells for $95 at retail. The PCE-AC88 features an absolutely massive heatsink-at least for a wireless add-in board. If the antenna base is too big for you, the antennas can be removed and attached directly to the card. Asus' own RT-AC88U and RT-AC5300 both fit the bill. Asus pce ac68 sale full#Anandtech notes that for the board to get its full theoretical throughput, it’ll have to be paired with a high-end router that supports the TurboQAM and NitroQAM standards. ![]() The PCE-AC88 achieves these mad megabit rates with a combination of Broadcom’s BCM4366 SoC and a fancy four-antenna base. According to the site, this PCIe x1 802.11ac card is capable of throughput of up to 2167Mb/s-theoretically higher than most wired Ethernet installations in the home. Anandtech has gotten wind of some fancy new networking hardware from Asus: the PCE-AC88 4×4 Wi-Fi adapter. ![]()
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