third one arrived today bought on eBay from supermotor009 (Hebron, KY, USA) is (as shown) a black one with no front logo. it arrived with S, O, L SMA bits, SMA barrel (F-F), shields on-board, clear clamshell case, USB cable, and short SMA M-M cables. 4-trace 900 MHz firmware. power switch was in the "ON" position. switched it OFF, and after a few seconds charging, it booted up fine.
of all the ones received so far, this one arrived in the best condition, even though it was shipped in a bubble padded envelope.
the second one received from overseas had a piece popped off the front lip of the clamshell case. free ventilation opening? :-P the second one's shipping carton had clearly sustained crushing force across the top (broadest) surface.
ps: for those keeping track, the second one also had a USB cable and i neglected to mention that in the previous report.
pps: friend of mine will be the beneficiary of this fine newly arrived NanoVNA. :-)
kb3cs