The TS-231K is powered by a quad-core 1.7 GHz CPU that features more CPU cores to enhance system performance.

The QNAP TS-251D is an entry-level 2-bay NAS that targets home users looking to set up a multimedia entertainment solution (4K media transcoding and streaming) and those who just need a device to secure their data via their own personal cloud. Released back in January, the QNAP NAS comes in two models: TS-251D-4G and TS-251D-2G. Though the 2G ships with 2GB of RAM and the 4G with 4GB, they both can be expanded to a maximum of 8GB using the two DIMM slots.

The TS-431K is powered by a quad-core 1.7 GHz CPU that features more CPU cores to enhance system performance.

The 4-bay TS-451D2 provides high storage potential for home and small business users to store, share, and back up files. Business users can leverage its dual-core Intel processor to enable seamless multi-user on-premises/remote access to work files, while home users can enjoy a high-quality multimedia experience with both streaming and direct 4K HDMI 2.0 output. Cloud Storage Gateways allow you to leverage your existing cloud storage to deploy a hybrid-cloud solution, while a built-in App Center provides a wide range of applications to add additional functionality to the TS-451D2. TS-451D2-2G has 2GB of DDR4 RAM.

The quad-core 1.7GHz TS-832PX features eight 3.5-inch SATA 6GB/s drive bays, providing huge storage potential for a wide range of applications and everyday usage. With two 10GbE SFP+ and two 2.5GbE LAN ports, the TS-832PX supports next-generation networks for empowering bandwidth-demanding applications and providing smoother file access and sharing. Various PCIe cards are also supported, including QM2 cards that provide M.2 SATA/NVMe SSD caching and Qtier™ auto-tiering storage to boost NAS performance.

AMD Ryzen™ quad-core 2.2 GHz 2.5GbE NAS supports M.2 NVMe SSD and PCIe expansion for adding 10GbE high-speed connectivity and M.2 SSD; QTS and QuTS hero dual operating system for greater flexibility.