I've received the U1173B cable today morning.
I have to DMM U1272A and U1273A, and choosed one cable and later model, and one U128x.
The (bad, for me) news is, it came by Fedex, with invoice, and I have to pay the taxes (wich in my country is a LOT).
This happened before anyone from Keysight contacted me. I was waiting some call or something like that, but suddenly the Fedex van came to my house.
I filled the info on 11/23 and today one option was delivered. Great!
PS: I've paid more to my country than the cable costed to Keysight (US$ 50,4 taxes x US$ 36,95 cable invoice). This is one reason brazil still so behind on technologie...
(This PS has nothing to do with Keysight)