Dynatron K199 low-profile copper CPU cooler for server applications.
Designed to fit inside either a 1U or ATX-Blade chassis.
Uses a blower-style fan with ball-bearings and a 4-pin power connector.

Compatible with the following Intel LGA sockets:
- 1156 (Nehalem, Westmere)
- 1155 (Sandy Bridge, Ivy Bridge)
- 1150 (Haswell, Broadwell)
- 1151 (Skylake, Kaby Lake, Coffee Lake)
- 1200 (Comet Lake, Rocket Lake)

These are unused extra parts left over from a server farm build.  These units are brand new, still in original retail packaging.  The factory thermal interface material (TIM) is still intact on the heatsink surface.  The peel-off layer is still intact on the adhesive surfaces of the mounting hardware.  What you see in the photos is what you get.