ThunderboltEX II PCIeX4 Thunderbolt 2 Controller
Thunderbolt 2 20Gb/s Controller - 1x Thunderbolt 2 External Ports - PCI-Express 2.0 X4 Slot - Full-Height - Intel DSL5320 Controller - Retail Box - Windows Compatible - Compatible with ASUS Maximus VI Extreme / Sabertooth Z87 / Z87-PRO / Z87-PRO (V Edition) / Z87-Plus / Z87-A / Z87-A (NFC Express Edition) / Maximus VII Formula / Sabertooth Z97 Mark 1 / Sabertooth Z97 Mark 2 / Gryphon Z97 / Z97-Pro / Z97-Pro (WiFi ac) / - 3 Year Depot Carry-In Mfg. Warranty