FrostyTech posted a review on the Silverstone NT07-AM2 1U Low Profile AMD Heatsink

The Silverstone NT07-AM2 is 1U low profile skived aluminum heatsink that is actively cooled by a small top-mounted 80mm fan. The entire heatsink
measures just 36mm high, making it ideal for 1U, slim-line and book-sized PC cases. It weighs just 330 grams and operates very quietly. Although it's 80mm 1500-2500RPM PWM fan isn't much to get excited about, when used to cool an energy efficient AMD processor having a TDP of 65W or less, the Silverstone NT07-AM2 is sufficient.

Silverstone NT07-AM2 1U Low Profile AMD Heatsink Review