How do I check if my CardBus slot works?

cardbus slot   Dan limited slot

PCMCIA Cardbus Slot Internal Reader Assembly--CompaqHP 21002105ZE5000 Laptop ; Brand compaq ; Compatible Brand hp ; Est delivery Thu, Jul 11

PCMCIA Cardbus Slot Internal Reader Assembly--CompaqHP 21002105ZE5000 Laptop ; Brand compaq ; Compatible Brand hp ; Est delivery Thu, Jul 11 Buy PCI transfer to PCMCIA Transfer Card A DESKTOP CARDBus card slot generates a PCMCIA extension card for a PC motherboard at Aliexpress for

slot bca 5000 PC Card = Cardbus = PCMCIA != Express Card? Model: Lenovo ThinkPad T400 CPU: Intel Core 2 Duo P8400 What is a Wireless CardBus Adapter? Would I need one for my laptop? This laptop doesnt have a PC card slot, is this important? All I'm going