Why PCoIP Zero Clients cannot operate at USB 2.0 speeds of 480Mbits/s?

The most common cause of slow USB data transfers is related to the network environment.USB data transfers are sensitive to the available network bandwidth, latency, and packet loss. 

Following are the few reasons that can cause the reduction in performance:

1. Some USB devices are not capable of functioning at the maximum specified transfer rate, even when connected locally to a regular PC.
2. USB devices were designed for short distance communication (connected to local PC by a USB cable) and not to traverse a network. Therefore, transfer rates observed locally may not be maintained when the USB device is bridged and communication travels across a network.

Resolution:

• Ensure sufficient network bandwidth for possibly high USB data rates.
• Minimize latency on the network between end-points.
• Minimize out-of-order packets (packet re-ordering at the end point increases the processing delay).
• Avoid network packet loss which causes a delay in re-sending lost USB packets.

Note: To ensure optimal network conditions, please consider recommendations from the following document:

Network checklist for PCoIP protocol LAN and WAN deployments

This is valid for both Tera1 and Tera2 zero clients.