QNAP Systems has expanded its Turbo NAS lineup with a pair of new NAS servers for the corporate and entry-level enterprise market. The new TS-439U-RP and TS-439U-SP models are both 4-drive 1U rack mounted NAS servers with hot-swappable drives that are capable of up to 8TB total capacity using 2TB drives.

QNAP said that the newly-designed HDD tray for 2.5-inch and 3.5-inch HDD dual support is also equipped in these two new models. The new NAS servers feature Intel ATOM 1.6GHz CPU and 1GB DDRII memory; up to 87.3MB/sec transfer rate for an FTP read with RAID 5 enabled.

In addition, both models can be configured for RAID 0/1/5/6/5+ spare, and JBOD with online RAID capacity expansion and RAID level migration. Both models feature iSCSI Target service with thin provisioning and dual Gigabit LAN ports with port trunking and multi-IP setting.

The company said that the new NAS servers are compatible with Windows, Macintosh, Linux, and UNIX networks and comes with features such as AES 256-bit volume-based encryption, IP blocking, secure FTP, encrypted remote replication for backing up the NAS server to another over the network, email or SMS alerts if drives in the NAS server fail or are about to fail.

Reportedly, the new NAS servers comes with QNAP’s new V3 of its NAS management software, embedded as firmware, adding new features including virtual disk drives support (up to 8 virtual disks through iSCSI expansion over the network), exclusive RAID Recovery that can recover an inactive RAID 1, 5, or 6 due to unintentional removal of drives.

Network Discovery Services are enhanced with new Bonjour support offering zero-configuration networking for HTTP, SAMBA, FTP, AFP, and SSH based networks, the company said.