Dell Wireless 1505 Dual-Band 802.11n PCIe WLAN Card MX846 0MX846 CN-0MX846.The Wireless 1505 PCI Express WLAN Mini Card from Dell adds draft-802.11n Wi-Fi capabilities to notebooks, PCs and other devices that support PCI Express bus architecture. By supporting multiple simultaneous data (or spatial) streams, Wireless 1505 adapters can achieve data rates of up to 300 Mbps and more reliable wireless coverage. In addition, dual-band operation allows these cards to be compatible with other 802.11a/b/g devices and provide Wi-Fi users with an enhanced multimedia experience.