based cooling company Noctua has announced four new CPU coolers for Intel and AMD server CPUs. This new Noctua lineup is based on quite successful desktop NH-U12 and NH-U9 CPU coolers. NH-U12DX, NH-U9DX, NH-U12DO and NH-U9DO are all optimized and designed for dual-socket Xeon and Opteron systems.
Since they are based on desktop versions, these four new coolers have the same specifications, so the NH-U92-based ones will use a 92mm fan, while the NH-U120 will use the 120mm fan. The new special feature is a 3-fan design which can be used with Xeon coolers. According to the press release and the picture at Noctua's Web site, when placed on a dual socket Xeon motherboard, these two can work together to form a 3-fan duct which should provide more efficient cooling.
All models are bundled with Noctua's NT-H1 thermal compound; the "DO" models will use Noctua's SecuFirm, while DX models will use Noctua's SecuFirm2 mounting systems. According to the press release these should be available immediately.
You can find more info about these at Noctua's Web site here