Linksys Wireless-G PCI Card 802.11g. Connectivity technology: Wireless, Host interface: PCI. Data transfer rate (max): 54 Mbit/s, Bandwidth: 2.4 GHz. Modulation: DQPSK (2 Mbps). Width: 160 mm, Depth: 21 mm, Height: 210 mm. Certification: FCC, CE, Wi-Fi, CCX 2.0