The Good The QNAP TS-239 Pro offers fast throughput speed and an overwhelming list of useful features. Also, it supports hot-swappable RAID configurations and has a robust, intuitive Web interface.
The Bad The QNAP TS-239 Pro has a long boot time, runs a little noisy, lacks a front LCD, and is relatively expensive. It also requires some networking knowhow to set up and operate.
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.
QNAP TS-239 Pro dual-bay NAS server
If you want to get a lot out of your NAS server, the QNAP TS-239 Pro may be the right choice for you, provided you don't mind getting your own hard drives and you possess a decent amount of networking know-how.
The QNAP TS-239 Pro supports an Ajax-based Web interface that's robust and easy to use, similar to that of the Synology DS209+. It comes with a well-rounded and generous feature set. It's the first two-bay NAS device we've reviewed that supports dual-Ethernet, dual-eSATA, and a VGA port for external monitor. Apart from the support for an IP camera, PC-less download capability, and many other advanced features, the QNAP TS-239 Pro also covers NAS basics, with its ability to operate as an FTP file server, a DNLA media server, an iTunes server, or a print server.
The QNAP TS-239 Pro doesn't have much of a downside except for the fact that it's rather expensive, costing $500 without any storage, and runs a bit noisy. The QNAP TS-239 Pro would make a good choice for a small business or a home office. If you are looking for something cheaper and simpler to use for home, we'd recommend the WD My Book World Edition.