The Dell OptiPlex 990 DT Intel i5-2400 3.10GHz is a desktop computer from Dell in the OptiPlex series. It features an Intel Core i5-2400 processor with a speed of 3.10 GHz, making it a powerful and reliable option for various computing tasks. This desktop unit offers a compact form factor, perfect for small offices or home use. With a sleek design and efficient performance, the Dell OptiPlex 990 is a top choice for those looking for a dependable desktop computer.