NAS QNAP 453E 4-Bay, CPU Intel® Celeron® J6412 4-core/4-thread processor, burst up to 2.6 GHz, RAM 8 GB DDR4 onboard not expandable, HDD 2.5" & 3.5" SATA 6Gb/s, 3Gb/s (neincluse), LAN: 2 x 2.5GbE, USB3.2 Gen2: 2 USB2.0: 2, tower, adaptor al
NAS QNAP 664 6-Bay, CPU Intel Celeron N5105/N5095 4-core/4-thread Processor, RAM 8GB (1x 8GB) DDR4, HDD 6 x 2.5"/3.5" SATA 6Gbps + 2 x M.2 2280 PCIe Gen 3 x1 SSD slots (neincluse), LAN: 2 x 2.5GbE, optional 10GbE expansion via a PCIe card, USB3.