1、This product is made of high quality material for high performance and stability. 2、Easy to use, high compatibility, compatible with a variety of computer models. 3、Professional design, it is your best choice. 4、This motherboard is a disassembled motherboard, there will be no incompatibility issues. 5、This motherboard comes with CPU: I3, strong performance. Features: This product is made of high quality material for high performance and stability. Easy to use, high compatibility, compatible with a variety of computer models. Professional design, it is your best choice. This motherboard is a disassembled motherboard, there will be no incompatibility issues. This motherboard comes with CPU: I3, strong performance. Specifications: Material: ABS Size: Approx. 21* 17.5* 0.6cm/ 8.27* 6.89* 0.24inch Application range: For DELL 3421/2421/5421 Mainboard model: For DELL 3421/2421/5421 CPU: I3 Battery Model: Button battery CR2032(not include) Package list: 1 x Computer Motherboard