The five bay sibling to the DS923+, same Ryzen R1600 platform and ECC support with one more drive slot and a second expansion option. The extra bay matters more than it sounds for RAID layouts, since five drives in RAID 6 gives you three drives of usable capacity instead of two.
Across 2 listings tracked in the last three days, the median total cost in USD including shipping is $658, and the lowest is $600. RackSniper flags a listing once it falls at or below 70 percent of the trailing 30 day median, which for this product means roughly $461 or less. Condition and configuration vary widely on used enterprise hardware, so treat the median as a reference point rather than a target.
| 1 | synology diskstation ds1522+ Used | $600 |
| 2 | Synology DiskStation DS1522+ 5-Bay Diskless NAS Hot Swap M.2 NVMe Used | $715 |