This product is either discontinued or we cannot get that from suppliers.
QNAP TS-1263XU-4G 12 Bay Diskless Rackmount NAS AMD GX-420MC 2GHz 4GB, AMD G-Series GX-420MC Quad-core 2.0 GHz Processor, 4GB SO-DIMM DDR3L (1x4GB), Drive Bays 12x 3.5" Hot Swappable, LAN 4x Gigabit RJ45, 1x 10GBASE-T, 1x PCIe Slot, 2U, 250W PSU, TS-1263XU-4G.
The cost-efficient 10GbE-ready TS-1263XU is powered by a high-performance AMD G-Series quad-core processor. Featuring native 10GbE connectivity that delivers high performance with persistent throughput.