Blade servers are not only great because of their efficiency of space, but they also share power, cooling, and cabling, which means you don't have to use power cables and such for each server. Blade servers use about 30% less power than the regular rack servers. Blade servers are excellent because of their power distribution abilities. They are also easy to upgrade as well as being easy to access for any repairs that are needed. Blades offer the highest computing density with the lowest footprint available.