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What distinguishes USB 3.0 (USB3 Vision) as an interface?

Its numerous advantages make USB 3.0 a highly attractive interface for many applications:

  • High net data rates of up to 380MB/s
  • Low CPU load – Image Preprocessing via FPGA as in Basler ace USB 3.0 saves resources for software and the actual image processing
  • With Plug & Play, the software can easily detect the camera and allows for flexible use with varying host PCs
  • Low latency and jitter times
  • Standardized and tested accessories from host adapters to cables and hubs
  • Standardized, protocol- and event-based communication between camera and software
  • Standardized camera control via GenICam 2.0

  USB 2.0 USB 3.0
Net Data Rate Up to 40MB/s Up to 380MB/s
Communication Host-to Camera Polling Asynchronous notifications
Error Management Protocol Layer only Link and Protocol Layer
Power Supply Up to 2.5W at 5V and 500mA Up to 4.5W at 5V and 900mA
Power Management Low-power state modes controlled by Host only Low-power state modes controlled by Camera and Host. Guaranteed latency tolerances.
Cable Type One "unshielded twisted pair" for data exchange Two "shielded twisted pairs" for data exchange
Cable Length Up to 5m passive Up to 8m passive
Zero Copy / Direct Memory access Yes Yes
Data Package with Bulk Transfer 512 Byte 1 Kbyte
CPU Load per Mbyte Medium Very Low

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