Amazon.com: QNAP TS-433-4G-US 4 Bay NAS with Quad-core Processor, 4 GB DDR4 RAM and 2.5GbE Network (Diskless) : Electronics
QNAP TS-653D Quad Core Professional 6-Bay NAS with 4GB RAM and 48TB (6 x 8TB) of Western Digital RED PRO NAS Drives Fully Assembled and Tested By CustomTechSales Desktop NAS - Newegg.com
QNAP TS-431X3-4G 4-Bay ARM-based NAS
QNAP TS-464 4-Bay NAS with 4GB RAM and 8TB (4 x 2TB) of Seagate Ironwolf NAS Drives Fully Assembled and Tested By CustomTechSales Rackmount NAS - Newegg.com
QGD-1600P-4G-US QNAP 16 x 1GbE Ports with 2 RJ45 and SFP+ Combo Ports 370W Total Budget Web Managed PoE Switch - 4GB RAM
QNAP TS-251D-4G-US 2-Bay Multimedia NAS
Amazon.com: QNAP TS-453Be-4G-US (4GB RAM Version) 4-Bay Professional NAS. Intel Celeron Apollo Lake J3455 Quad-core CPU with Hardware Encryption : Electronics
Amazon.com: QNAP Turbo NAS TS-664-4G SAN/NAS Storage System,Intel 4GB RAM , 4GB Windows : Electronics
QNAP TS-251D-4G-US 2-Bay Multimedia NAS
QNAP TS-464 4-Bay NAS with 4GB RAM, 500GB (2 x 250GB) NVME Cache, and – Customtechsales
TS-453D-4G-US QNAP 4 Bay Desktop NAS 2GHz Intel Celeron J4125 Quad-Core 4GB