The Mi strip 27w can give the Mi 10 fast charge, but it needs to be paired with a special charger for the Mi 10. The Mi 10 uses the QC2.0 fast charge protocol, which requires a charger that meets the QC2.0 standard to be fast charged. Therefore, if you use the millet strip 27w for charging, you need to use the millet 10 special charger to achieve fast charging function.
Yes, it's a fast charge, straight into the usb port.