IBM/Lenovo 26P8506 802.11a/b wireless network card designed for ThinkPad mobile workstations. This mini-PCI form-factor adapter delivers dual-band 802.11a and 802.11b connectivity, supporting legacy enterprise wireless infrastructure and mixed-mode networks. Typical throughput reaches 54 Mbps on 802.11a and 11 Mbps on 802.11b. Compatible with ThinkPad T, X, and R series notebooks from the early-to-mid 2000s era. Refurbished unit includes all necessary mounting hardware and documentation for quick integration into supported systems. Ideal for organizations maintaining mature ThinkPad fleets or requiring backward-compatible wireless capability in air-gapped or isolated network environments. Tested and guaranteed. Available via quote.