The Intel PRO/100 S Server Adapter is a member of the industry's first complete family of security adapters that protect data for all your systems without sacrificing performance - mobile, server and desktop. - Encryption offloading from the server to the adapter protects data while conserving server resources - New Intel 82550 Fast Ethernet Controller with integrated encryption co-processor - Optimized for Windows 2000 with IPSec functionality extended to Windows NT 4.0 using Intel Packet Protect software - Advanced server features such as Adaptive Load Balancing, Fast EtherChannel, Intel Link Aggregation and IEEE 802.3ad balance traffic among multiple Intel Server Adapters - Intel SingleDriver technology simplifies installation and maintenance through a common set of drivers with Intel PRO/100 Network Adapters - IEEE standard/network topology 10BASE-T, 100BASE-TX - Wiring and connectors Cat5, 2pr; RJ-45 - RJ-45 connector- 5 pack- limited lifetime warranty