StarTech.com 2m (6ft) Mini DisplayPort Cable - 4K x 2K Ultra HD Video - Mini DisplayPort 1.2 Cable - Mini DP to Mini DP Cable for Monitor - mDP Cord works with Thunderbolt 2 Ports - M/M (MDISP2M)
StarTech.com 3-Port Multi Monitor Adapter - DisplayPort 1.4 to 3x 4K DisplayPort Video Splitter - Dual or Triple 4K - Laptop/Desktop DisplayPort MST Hub for Multiple Monitors - For Windows PCs Only (MST14DP123DP)