Mentioned on the linked Indiegogo page¹: “What's the speed limit? The ExpressCard slot is limited to a single PCI-E 2.0 lane. This means the real-world speed

Mentioned on the linked Indiegogo page¹: “What's the speed limit? The ExpressCard slot is limited to a single PCI-E 2.0 lane. This means the real-world speed bottleneck is 500MB/s, which is roughly the speed of SATA 6Gb/s (SATA 3). Pre-Sandy Bridge models (T410/X201 and older) are limited to PCI-E 1.1, which is roughly 250MB/s.” ―――――― ¹ — https://www.indiegogo.com/projects/thinkmods-expresscard-nvme-adapter/ https://www.indiegogo.com/projects/thinkmods-expresscard-nvm...