StarTech.com 10m Active DisplayPort Cable - DP to DP M/M (DISPL10MA) | EE Store
Lindy 15m DisplayPort 1.1 Cable, Anthra Line - Cables & Connectors from AV Parts Master Ltd UK
StarTech.com Male DisplayPort to Male DisplayPort, PVC Cable, 4K @ 30 Hz, 15m
Product | StarTech.com 50 ft DisplayPort Cable with Latches - Active - 2560 x 1600 - DPCP & HDCP - Male to Male DP Video Monitor Cable (DISPL15MA) - DisplayPort cable - 15 m
15m Locking DisplayPort Cable | TVCables
15m DisplayPort 1.1 Cable, Anthra Line - from LINDY UK