Latency in depthai-v3.0.0-rc.4

Dpd

I’m connecting my oak d pro camera via USB 3.0 cable (provided by luxonis) to a jetson orin nano. Even using the power+data splitter that is provided (again by luxonis) I’m frequently getting 0.4 second delay (in captured frame) from real world. Is there any way to reduce this, if yes please suggest how. If any details required, i’m happy to share.

OskarSonc

Hey @Dpd

0.4 s is much higher than expected (USB3 should be ~30–40 ms).
First check the link really is USB3:

import depthai as dai
with dai.Device() as d:
    print("USB speed:", d.getUsbSpeed())  # expect UsbSpeed.SUPER

If it shows HIGH, you’re on USB2 → try another port/cable/power. Docs: USB deployment guide.

If it is USB3, I would check out this page:
https://docs.luxonis.com/software-v3/depthai/tutorials/optimizing

Thanks
Oskar