The USB redirection feature has certain limitations.

  • When you access a USB device from a menu in Horizon Client and use the device in a remote desktop or published application, you cannot access the USB device on the local device.
  • USB devices that do not appear in the menu, but are available in a remote desktop or published application, include human interface devices such as keyboards and pointing devices. The remote desktop or published application, and the local device, use these devices at the same time. Interaction with these USB devices can sometimes be slow because of network latency.
  • Large USB disk drives can take several minutes to appear in the remote desktop or published application.
  • Some USB devices require specific drivers. If a required driver is not already installed, you might be prompted to install it when you connect the USB device to the remote desktop or published application.
  • If you plan to attach USB devices that use MTP drivers, such as Android-based Samsung smart phones and tablets, configure Horizon Client so that it connects USB devices to the remote desktop or published application automatically. Otherwise, if you try to manually redirect the USB device by using a menu item, the device is not redirected unless you unplug the device and then plug it in again.
  • Webcams are not supported for USB redirection.
  • The redirection of USB audio devices depends on the state of the network and is not reliable. Some devices require a high data throughput even when they are idle. Audio input and output devices work well with the Real-Time Audio-Video feature. You do not need to use USB redirection for those devices.
  • You cannot format a redirected USB drive in a published desktop unless you connect as an administrator user.
Note: Do not redirect USB Ethernet devices to a remote desktop. If the local system is connected, the remote desktop can connect to the network. If you set the remote desktop to autoconnect USB devices, you can add an exception to exclude the Ethernet connection. For information about configuring USB redirection, see the VMware Horizon Client for Mac Installation and Setup Guide document.