QNAP's TS-131 is our new top performing single-bay NAS.

ZyXEL's NAS540 4-Bay Personal Cloud Storage has lots of features and high performance at an entry level price.

D-Link DNS-340L is cheap, but has little else to recommend it as a business-grade RAID5 NAS.

NETGEAR's ReadyNAS RN200 is a nice step up from the Marvell-powered ReadyNAS 100.

Thecus' N5810PRO is a capable RAID5 class NAS, but not the best value.

WD's My Cloud EX4100 hits the price / performance sweet spot for a mid-range RAID 5 NAS.

New firmware gives Seagate's Personal Cloud NAS a significant performance boost.

The Seagate Personal Cloud 2-Bay brings RAID 1 to Seagate's new home NAS family.

WD's My Cloud DL2100 uses a different CPU than its 4 bay sibling, but still delivers high performance.

QNAP's TVS-463 is the first AMD-powered NAS we've seen and makes a good first impression.

QNAP's TS-112P is a lot of NAS for only $120.

Updated - The Seagate Personal Cloud is a little on the slow side, but has a surprisingly big feature set for a simple home NAS.

Updated - WD's My Cloud DL4100 is the company's best attempt yet at producing a business class NAS.

Synology's DS115j delivers a lot of features and decent performance for $130.

The Seagate Wireless is a decent little device, but with disappointing read / write speeds.

Updated - ASUSTOR's AS5102T and AS5104T are high-performance NASes that could use 10GbE ports to really shine.

ASUSTOR's AS5002T and AS5004T deliver a lot of bang for relatively little buck.

NETGEAR's OS 6.2 has enhanced cloud features.

Updated - Synology's DS415+ is a wee bit different than its DS415play sibling.

Thecus' N4310 is the lowest-priced four-bay NAS we've seen.