The Sony DRX-820U External Double/Dual Layer DVD/CD ReWriteable Drive is a versatile external drive that is compatible with PCs. It features a sleek silver design and a write speed of 16x, making it efficient for writing both DVD and CD media. The drive supports various readable formats such as DVD-R, DVD+R, DVD-RW, CD-ROM, and more. With USB interface connectivity, this Sony external drive is a reliable option for those looking to enhance their computer's disc duplication capabilities.