Looking for a reliable and high-capacity internal hard drive? Look no further than the Seagate ST3120026A-RK Barracuda 120 GB Internal Hard Drive. This upgrade kit is compatible with both Microsoft and Mac systems, making it a versatile choice for any user.

With a rotation speed of 7200 RPM and a cache of 8 MB, this hard drive is designed to deliver fast and efficient performance. It also features a removable design, making it easy to install and replace if needed. The silver color and 3.5-inch form factor give it a sleek and modern look, while the 120 GB storage capacity provides ample space for all your important files and data.