My Cloud EX2 Ultra 0TB, Marvell® ARMADA® 385 1.3 GHz dual-core; 1 GB DDR3; 2 x 3.5 inch hard drive bays, hot swap capable, tray-less design;

DS120J 0/1 HDD

QNAP TS-230

TS-231K 0/2 3.5-inch SATA 6Gb/s, 3Gb/s, Alpine AL214, 4-core, 1.7GHz, 1GB DDR3, Hot-swappable, Gigabit Ethernet Port x 2, USB 3.2:2

DS420j DiskStation 4-bay

TS-231P3-2G 0/2 3.5-inch SATA 6Gb/s, 3Gb/s, Alpine AL314, 4-core, 1.7GHz, 4GB SO-DIMM DDR3, 512 MB, Hot-swappable, 2.5G/1G/100M, USB 3.2 Gen: 3

TS-431K 0/4 3.5-inch SATA 6Gb/s, 3Gb/s, Alpine AL214, 4-core, 1.7GHz, 1GB DDR3, Hot-swappable, Gigabit Ethernet Port x 2, USB 3.2:2

Intel Celeron J4025, 2GB, 2X 16TB HDD

TS-431P3-2G 0/4 3.5-inch SATA 6Gb/s, 3Gb/s, Alpine AL314, 4-core, 1.7GHz, 4GB SO-DIMM DDR3, 512 MB, Hot-swappable, 2.5G/1G/100M, USB 3.2: 3

NAS Synology DS420+ 0/4HDD