IBM think center desktop model M50-8189 unu. 4 GB's of ddr pc3200 memory.DVD/RW drive, 2nd DVD Rom/CD RW drive.2.5 floppy Dr. has link systems WMP54G wireless pci install as well as Intel pro V10/100/1000 fast Ethernet .8 USB 2.0 slots, 1 ps-2 keyboard and 1 ps-2 mouse port. SATA II 500 GB HDD, WIndows7 home premium /media center. Intel Pentium 4 HT processor. comes with mouse,internet media keyboard,power cord and antenna for wireless board. Last of the real IBM's! Great buy for the money for a dependable machine for home or school dorm use. Take it away!