The TL-WDN4800 N900 Wireless Dual Band PCI adapter by TP-LINK offers high-speed wireless connectivity for PCs. With a maximum downstream data rate of 450 Mbps and a maximum wireless data rate of 450 Mbps, this adapter provides reliable and fast internet access. The low profile design allows for easy installation in a variety of PC configurations, while the dual-band technology ensures compatibility with a wide range of devices. This green adapter is an ideal choice for users looking to upgrade their home networking and connectivity options.