Amazon has QNAP TS-453D-4G 4 Bay NAS for Professionals on sale for $439.20. Shipping is Free.
Specs:
- Intel Celeron J4125 quad-core 2.0 GHz processor (burst up to 2.7 GHz)
- Intel HD Graphics 600
- 4GB SO-DIMM DDR4 (Max 8GB)
- 4 x 3.5-inch drive bays (Diskless)
- 2 x 2.5GbE ports
- 1 x PCIe Gen 2 slot
- 3 x USB 2.0 ports
- 2 x USB 3.2 Gen 1 ports
- 1 x HDMI output