HP USB Keyboard with USB Ports

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External USB hard drives and optical drives that do not have an external power source are not
supported.
Figure 6 Unsupported Drives
The following table lists examples of USB devices that are compatible and non-compatible with the
HP USB Keyboard with USB Ports.
NOTE: The two USB ports on the keyboard each support devices up to 100 milliamps of power. If a
device declares over 100mA, a notification will appear in the Windows system tray.
Devices listed as compatible in the following table must not exceed 100mA of power to function
properly.
Table 3 Compatible and Non-Compatible USB Devices
Compatible USB Devices Non-Compatible USB Devices
Mouse Non-powered Hard Drive
USB Flash Drive Non-powered CD/DVD Drive
Smart Card Reader Non-powered Scanners
Digital Camera Non-powered Printers
MP3 Player Charger Web Cam
Cell Phone Charger Game Pad
Powered Hard Drive Bluetooth Dongle
Powered CD/DVD Drive Media Card Reader
Headset Speakers
Microphone Tablet Computer
USB 3.0 Devices at USB 2.0 Speed USB 3.0 Devices at USB 3.0 Speed
4 HP USB Keyboard with USB Ports ENWW