From the Manufacturer NETGEAR's 10/100 dual-speed CardBus Ethernet PC Card is a 32-bit, high-performance adapter that allows any CardBus-equipped computer to connect to an Ethernet or Fast Ethernet network. Model FA511 supports hot-swapping, allowing you to insert and remove it as necessary, without having to turn off or reset your PC. With a compact, dongle-free design, Plug-and-Play simplicity, and PCI-like performance, the Model FA511 unleashes the power of today's notebook PCs, allowing you to keep pace with demanding applications and advanced desktop technologies. CardBus is a 32-bit bus-mastering architecture that operates at PCI local-bus speeds of up to 33 MHz, yielding a peak bandwidth of 132 MB/sec. Unlike 16-bit PC Cards, which operate at slower ISA bus speeds of 8 MHz using an ISA-like asynchronous protocol, CardBus provides a fast 32-bit multiplexed address/data path that allows full access to Fast Ethernet's bandwidth. By utilizing internal bus speeds, CardBus can operate at speeds six times faster than a 16- bit PC Card and five times faster than a 100 Mbps PC Card. In addition, CardBus PC cards operate at 3.3 Volts, saving power and conserving your PC's battery life. Model FA511 features leading-edge bus-mastering capabilities to optimize throughput while maintaining low CPU utilization. Bus mastering allows the FA511 to assume control of your PC's system bus, accelerating data transfers. 16-bit PC Cards, by comparison, act as a bus slave and pass data through the CPU before sending it to the host system. This slows data transfers and strain your PC's processor. The Model FA511 consumes a low 3.3 Volts of power. Low power consumption prolongs your PC's battery life, which allows you to run your PC longer without needing to recharge it or use a power supply. Designed specifically to harness the power of the latest networking technology with 32-bit ,10/100 performance.