usb 3.0 slot bracket
Lenovo Thinkstation P340 Tower (30DJS7YB00)
Explansion Slots: PCIe 3.0 x16, PCIe 3.0 x1, PCIe 3.0 x4. Storage: 1x 3.5″ SATA/SSD HDD + 4x M.2 PCIe SSD USB Traditional Keyboard – English USB Mouse OS ...
2-Pack USB 3.0 cpu front panel with 3-Inch HDD/SSD to 5.25 Floppy ...
There are a lot of cheap PCI breakout brackets available on market which use 20pin internal USB 3.0 interface to provide either 2 Type C or 1xA and 1xC port and seems like Cervoz has included similar bracket with the card.
PCI-E to USB 3.0 PCI Express Card Incl.1 USB C and 2 USB A Ports, M.2 NVME to PCIe 3.0 Adapter Card with Bracket | Lazada.vn
PCI-E to USB 3.0 Adapter Card với 1 USB-C và 2 USB-A port, hỗ trợ M.2 NVMe to PCIe 3.0. Thiết kế bracket chắc chắn, màu đen, giúp kết nối nhanh chóng và ổn định cho hệ thống máy tính. - Lazada