We'd be remiss not to touch on the travails resulting
from Western Digital's ambiguous naming scheme. As has
been the case for more than 2.5 years now, WD
distinguishes its lines of drives only with [suffixes]:
JBRTL is, I believe a retail kit which includes SATA cable and mounting
screws(what I bought). A JBR by itself is the bare drive. A little
investigation at the WD website will shed further light.