Modders-Inc posted a review on the Xigmatek HDT-S1283 CPU Cooler

The Xigmatek HDT-S1283 utilizes a 120mm rifle bearing fan that is rated at 1000 - 2200 RPM and produces 72.1 - 99.6 CFM's (depending on RPM). The fan has a moderate noise level of 28 - 32 dBA, which should be fairly quite in a closed case.

Xigmatek HDT-S1283 CPU Cooler Review