 The ThinkCentre M52 desktop was announced in May 2005 following Lenovo's acquisition of IBM's Personal Computing Division.PC World called the M52 desktop, "A corporate machine for the security conscious business user looking for stability and reliability".The M52 desktop was equipped with a 3 GHz Pentium 4 processors, an 80GB hard disk drive, up to 4GB of RAM, eight USB 2.0 ports, two serial ports, a Gigabit Ethernet connection, VGA output, and a chassis that did not require tools to open − a toolless chassis.