Intel 3rd Gen Core i5-3470 CPU / 8GBDDR3 Memory / 500GB HDD / DVDRW /Gigabit LAN /Windows 7 Pro Warranty – 3 Months from MMT Invoice onlyKeyboard/Mouse- NOT Included. The 3 Month warranty is not upgradeable. This Desktop may have small physical defects or blemishes, but is in full working condition. All refurbished desktops are strictly firm sale, no returns (DOA excepted). DOA units will be credited.