Possible faulty SAS cable

Scrub of 4 drive RAIDZ2 pool of 18TB SAS EXOS (Seagate) resulted in

443 checksum errors on one drive with no data errors - the drive has ~3500 hours on it

a SMART long test is bringing up zero errors

So I’m going to guess that the SFF-8643 to SAS cable has a fault for that drive?

I’m going to try either swapping the drives or adding another cable just for that drive - unless anyone has any other ideas