This product is either discontinued or we cannot get that from suppliers.
QNAP TS-251+-2G Nas Tower Quad Core, Intel® Celeron® J1900 quad-core 2.0 GHz processor (burst up to 2.42 GHz), 64-bit x86, Intel® HD Graphics, 2 GB SO-DIMM DDR3L, 8 GB, 2 x SO-DIMM DDR3L, 512MB, 2 x 3.5-inch SATA 6Gb/s, 3Gb/s, Power/Status, LAN, USB, HDD1-2, Power, Reset, USB Auto Copy, 60W/65W adapter, 100-240V.
Facing the increasing demand for data storage, sharing and multimedia processing, more and more users are looking for a NAS system with good performance and an affordable price tag.