Hi, Erik We have some questions that we would like to discuss with you. As follow. 1. Can this module support 4 cameras to shoot simultaneously? What is the time accuracy of synchronisation? 2. Is there a cache on the module to save images? Or does it have to be connected to other host devices such as raspberry pi or windows for image storage?

Hi @"Jalen_Xu"#p6407 , 1. Yes - latency depends on the sensors you are using. For eg 4x OV9282 you can use [hardware sync](https://docs.luxonis.com/projects/hardware/en/latest/pages/guides/sync_frames.html) and latency would be below ms. Eg. IMX378, when used with OV9282, uses FW soft sync, which still achieves below ms latency. 2. In theory, there should be eMMC storage (depending on the revision, [run example here](https://docs.luxonis.com/projects/api/en/latest/samples/bootloader/bootloader_version/#bootloader-version)), which you could utilize to save frames on, but in general you should send directly to host. What's the application? Thanks, Erik

OAK-FFC-4P

Jalen_Xu

Hi, Erik
We have some questions that we would like to discuss with you. As follow.

Can this module support 4 cameras to shoot simultaneously? What is the time accuracy of synchronisation?
Is there a cache on the module to save images? Or does it have to be connected to other host devices such as raspberry pi or windows for image storage?

erik

Hi Jalen_Xu ,

Yes - latency depends on the sensors you are using. For eg 4x OV9282 you can use hardware sync and latency would be below ms. Eg. IMX378, when used with OV9282, uses FW soft sync, which still achieves below ms latency.
In theory, there should be eMMC storage (depending on the revision, run example here), which you could utilize to save frames on, but in general you should send directly to host. What's the application?

Thanks, Erik