The TP-LINK TF-3239D Fast Ethernet Adaptor is a highly integrated and cost-effective Fast Ethernet Adaptor that provides 32-bit performance PCI bus controller and full compliance with IEEE 802.3 10Base-T IEEE 802.3u 100Base-TX specifications and IEEE 802.3x Full Duplex Flow. TF-3239D includes a socket for a boot ROM and can be used in diskless workstations providing network security and easy management.