The following parts are suggested for use with the ePix camera system.
http://www.fs.com/products/11552.html
http://fibertronics-store.com/Cisco-Compatiable-MPO-8-LC-Duplex-QSFP-SR4-Fanout-Cable-1-Meter-MPO-QSFP-OM3-8LC-1M1.htm