What type of connectivity does the HP LaserJet Pro MFP M28-M31 offer?
The HP LaserJet Pro MFP M28-M31 supports Hi-Speed USB 2.0 connectivity. This is the primary connection method available across the models in this series. (Page 6)
From the official HP Laserjet Pro Mfp M28 M31 Printer manual, page 6
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