QNAP Systems, Inc. Network Storage

The Bottom Line: The QNAP TS-239 Pro is a dual-bay NAS server that offers good performance and many features for a relatively high premium. It's a device best suited for those with intermediate or advanced know-how of networking.

Specs: QNAP TS-239 Pro Turbo NAS - NAS server, 0 GB, PC, Mac, 7 pin external Serial ATA, 4 pin USB Type A, RJ-45, Hot-swap, Hi-Speed USB, Gigabit Ethernet

The Bottom Line: The QNAP TS-109 Pro II is a single-volume NAS drive that offers a lot more than just network storage. It's a little pricier than its peers, but its many features--including PC-free downloads--are well organized and easy to use.

Specs: QNAP TS-109 II - NAS server, PC, Mac, Unix, 7 pin external Serial ATA, 4 pin USB Type A, RJ-45, Standard, Gigabit Ethernet, Flash

Specs: QNAP SS-439 Pro Turbo NAS - NAS server, 0 GB, PC, Mac, 7 pin external Serial ATA, 4 pin USB Type A, RJ-45, 15 pin HD D-Sub (HD-15), Hot-swap, Ethernet, Fast Ethernet, Gigabit Ethernet

Specs: QNAP SS-839 Pro Turbo NAS - NAS server, 0 GB, PC, Mac, 7 pin external Serial ATA, 4 pin USB Type A, RJ-45, Hot-swap, Hi-Speed USB, Gigabit Ethernet

Specs: QNAP TS-639 Pro Turbo NAS - NAS server, 0 GB, PC, Mac, RJ-45, 4 pin USB Type A, 7 pin external Serial ATA, Hot-swap, Gigabit Ethernet, Flash

Specs: QNAP TS-219P Turbo NAS - NAS server, PC, Mac, 4 pin USB Type A, RJ-45, 7 pin Serial ATA, Hot-swap, Hi-Speed USB, Gigabit Ethernet, Flash

Specs: QNAP TS-809U-RP - NAS server, Rack-mountable - 2, PC, Mac, 4 pin USB Type A, RJ-45, 9 pin D-Sub (DB-9), 15 pin HD D-Sub (HD-15), Hot-swap, Gigabit Ethernet, Flash

Specs: QNAP TS-119 Turbo NAS - NAS server, 0 GB, PC, Mac, 7 pin Serial ATA, None., Ethernet, Fast Ethernet, Gigabit Ethernet

Specs: QNAP TS-509 Pro Turbo NAS - NAS server, PC, Mac, RJ-45, 4 pin USB Type A, 7 pin external Serial ATA, Hot-swap, Gigabit Ethernet, Flash

Specs: QNAP TS-419P Turbo NAS - NAS server, PC, Mac, Unix, RJ-45, 7 pin external Serial ATA, Hot-swap, Gigabit Ethernet