Expresscard Express Card 34mm to PCI-E 16X Riser for Laptop External GPU Card | eBay
Amazon.com: JMT EXP GDC Notebook External PCI-E Discrete Graphics Beast Series External Laptop Docking Station Mini PCI-E/M.2 A Key No Power ( Expresscard) : Electronics
My eGPU set up: Thinkpad X230 + GTX 1050 with GDC beast v8.5 via expresscard. : r/eGPU