My Neiko Digital Caliper puts the PSU barrel plug (that came with the Pioneer BDR-XS07TS) at:
OD: 3.46mm
ID: 1.23mm
Please note that the ID is at the limits of what this caliper can fit into.
My Neiko Digital Caliper puts the PSU barrel plug (that came with the Pioneer BDR-XS07TS) at: