The NEW SIIG UltraATA/133 PCI PC ATA Drive Controller, RoHS, SC-PE4B12-S4 is a high-performance disk controller designed for use with UltraATA/133 hard drives. With 2 ports supporting up to 4 drives, this controller is ideal for those looking to improve their computer's storage capabilities. Made by SIIG, a trusted brand in the industry, this controller boasts a maximum data rate of 133 Mbps and is compatible with PCI ports. Built in Taiwan, this controller is reliable and efficient for enhancing your computer's performance.