General description For 5 Copper Heatsink Metal Case is designed for effective passive cooling of 5 and 5B models. Made from heavy-duty pure copper, this heatsink ensures long-lasting performance and optimal heat dissipation. It supports fan installation and comes with thermal pads for the CPU, RAM, USB chip, and network module, enhancing overall cooling efficiency. Technical specifications Material: Copper Base: Acrylic Package Contents: 1x Heatsink Metal Case, 1x Fan Measurement allowed error: +/- 1-3 cm Other information Please tear off the protective film on the acrylic base before use. Different batches may have variations in appearance, which do not affect functionality. Note: Light reflection and different displays may cause color discrepancies between the item in the picture and the actual product.