 The ThinkCentre M55, M55p, and M55e were announced by Lenovo in September 2006.The ThinkCentre M55 received a positive review from PC World, with the reviewer stating that "The Lenovo ThinkCentre M55 9BM is a compact and quiet business PC that keeps maintenance simple and makes upgrades easy.Its design and functions are well-suited to an office environment and we think it's a good choice for any business searching for a uniformed PC roll-out."