HP LaserJet Pro 400 Printer M401 series - Manual (Page 76)

Setting Description
10T Full 10 Mbps, full-duplex operation
10T Half 10 megabytes per second (Mbps), half-duplex operation
100TX Full 100 Mbps, full-duplex operation
100TX Half 100 Mbps, half-duplex operation
5. Touch the OK button. The product turns off and then on.
64 Chapter 4 Manage and maintain ENWW
1000T Full 1000 Mbps, full-duplex operation