the Allied Telesis At-2874sx Gigabit Fiber Expresscard/34 Network Interface Card (nic) Is An Ideal Fit For Fiber-to-the-laptop Networks That Depend On Secure And Reliable Systems.the Single-piece, Integrated Design Of The At-2874sx Endures Frequent Use With No Damage To The Fiber Connectors, Making It A Solid Solution For Military And Government Applications.mobile Connectivity Through Fiberthe Allied Telesis At-2874sx Expresscard/34 Nic Is Designed To Provide Notebook Computers With Network Connections Through A High Speed Fiber Optic Link Via A 34 Mm Expresscard Interface. An Optional Tab Is Supplied To Support Expresscard 54 Mm Slots. The At-2874sx Features An Sc Or Lc Fiber Connection Supporting The Linux, Microsoft Windows 7, Xp, Vista And Windows 8 Operating Systems And Is Compliant With Industry Standards.