Removed from a working enterprise enviroment. System has 4 GB of DDR 2100 ECC installed. Currently has 2 Seagate 146 GB Cheetah drives. Dual Xeon 2.4 HT cpus. Apdatec 4 port 100 base NIC installed. Dual onboard nic as well. This system has ubuntu server installed for testing purposes. This is a awesome unit. Happy Bidding. I also have 2 more of these units that have same specs but with 3 GB of ram instead if interested. If you have any other questions feel free to leave me a message. Thanks!