For dual-DIMM configurations, you must use a pair of identical DDR4 modules.
The system is shipped without HDD. For the HDD compatibility list, please visit https://www.qnap.com/compatibility/
Only the 2.5GbE port
With a riser card (two PCIe slots): slot 1:160 x 68.9x 18.76 mm / 6.3 x 2.71 x 0.74 inches. slot 2:160 x 68.9x 39.08 mm / 6.3 x 2.71 x 1.54 inches. Wider cards can be installed if the next PCIe slot will not be used. Without a riser card (one PCIe slot): Slot 1:160 x 111.15 x 39.08 mm / 6.3 x 4.38 x 1.54 inches.
Excludes ear hook and the protruding part of the Power Supply Unit.
Tested fully populated with WD10EFRX hard drives.