Summary: I own two of these, version 2.1 and version 3.0. Version 2.1 definitely runs too hot but after 2 years of being on 24/7 it is still going strong. Version 3.0 runs cooler and the performance on both is outstanding.
Summary: Version v3 fixes the well known problems of v1 - noisy fan, no jumbo frame support. Also fixes v2.X issue of overheating. The SD2008 has gotten some justifiably bad reviews based on the earlier v1 & v2.x designs.
Summary: This excellent Ethernet Switch fully lives up to any expectations related to its prestigious manufacturer. Metal body: heavy, solid, durable-looking. Setup time: zero. Problems/bugs: zero. All three PCs having Gigabit capability in my home network immediately recognized the new 1GB bandwidth limit.
Summary: You can rely on Cisco. Once I plugged it in, it's been working like a charm. It does its job and that's all there is to it. This is not a complicated device; it's there to allow fast speed connection between your Gigabit Ethernet ports on your computers. And it does it well.
Summary: I guess some of the earlier versions of this switch had heat and noise issues. I bought mine in March 2009 and it's been working flawlessly. No noise at all and the case is barely warm to the touch. Just plug in the power supply and CAT5E cables and away you go! No brainer simple.
Summary: I bought this to upgrade from a 5 year old 10/100 linksys switch. The quality of this product is immediately apparent. It's made of metal (aluminum I think) and has s very solid feel. The metal should help with heat dissipation, which was a problem with my old switch.
Summary: Bought this switch and received the 2.1 version which is black. It is fanless or at least if it does have fans I don't hear them. Tested it and performance is good getting almost 1Gbit under all conditions (hard disks and other hardware being the limiting factor).
Summary: I received the latest v3 revision of the Linksys SD2008 8-port Gigabit switch, it has no fan, therefore no fan noise, it's dead quiet. Other than the lights, you'd never know the thing was even powered on.