usb fingerprint reader, ddsky portable security key biometric fingerprint scanner support windows 10 32/64 bits with latest windows hello features (1-pack) ddsky <b>specification:</b></br> type:usb fingerprint module</br> material: abs, metal</br> socket: standard usb 2.0/3.0 interface</br> finger reading limit: 5+ fingers, 360 degree touch</br> finger reading speed: instant, within 2 seconds, smart learning</br> os: support windows 10 32/64 bits with latest windows hello features</br> size: 2*1.7*1.2cm / 0.8*0.7*0.5" (l*w*h)</br> net weight: 5g / 0.2oz</br> <p> <b>package:</b></br> 1*usb fingerprint module</br> <p> <b>24 months guarantee!</b></br> your satisfaction means everything to us. we are aim to offer the best quality and service. </br> please feel free to contact us to fulfill your request promptly without any hassle. we will solve your problem within 24 hours.</br> a replacement or full refund will be guaranteed if you are not satisfied with the item. thank you very much!</br>