I was expecting the device would work on my Lenovo Yoga C740 but not function works. Everything like the power charging on USB-C, memory card reader and USB-A connecting works but HDMI connection to external display via the device doesn't work. I tried posting a question to the merchant selling this device but there is no answer. I acknowledge that there is no mention from the description that it will work with lenovo yoga C740 but it did highlight it works with Lenovo Yoga 900/910. So I took the risk of ordering it despite not knowing if it works particularly on my laptop. Anyway, the device looks and feels solid, and it would it be great it works flawlessly on all functions/features.