This product is either discontinued or we cannot get that from suppliers.
QNAP TS-432XU-RP-2G 4 Bay Diskless Rackmount NAS, Annapurna Labs Alpine AL-324 ARMv8 Cortex-A57 quad-core 1.7 GHz, 2 GB DDR4 (1 x 2 GB), 4x 3.5-inch SATA 6 Gbps bays (3.5/2.5-inch SATA hard disk drives, 2.5-inch SATA solid state drives), 2x GbE RJ-45 & 2x 10Gb SFP+, 4 x USB 3.1 Gen 1 Type-A, PCIe 2.0 x2, Dual 250W PSU providing Redundancy, No rails included.
The TS-432XU-RP is equipped with a AL-324 quad-core 1.7 GHz platform-on-chip (PoC), from the Alpine V2 AL3 product family powered by Annapurna Labs, an Amazon company.