ASRock - 【Coming soon】The new gear makes better experience: ASRock U.2 Kit is a M.2 to mini-SAS adapter for connecting some of the world's fastest U.2 PCIe Gen3 x4 SSDs! | Facebook
NeweggBusiness - ASRock Model U.2 Kit M.2 to U.2 Add-on Card
ASRock Announces U.2 Kit For M.2 Slots and Front USB 3.1 Panel With Type-A and Type-C Ports | The SSD Review
ASRock Announces U.2 Kit For M.2 Slots and Front USB 3.1 Panel With Type-A and Type-C Ports | The SSD Review