Do you know if Expresscard slots in laptop PC's are normally x4 lane capable?

Do you know if Expresscard slots in laptop PC's are normally x4 lane capable?

Unfortunately, all laptops only put out PCIe .01 x1 (2.5Gb/s) bandwidth through the ExpressCard slot. We offer a x4 connector on an ExpressCard for customers who want to connect the laptop to a device with a x4 connector. A laptop (Apple, Windows, Acer, to name a few) with Thunderbolt 2 operates at 20Gb/s.