buyer was rude and aggressive, no need for that kind of behavior and left negative feedback already, not fair to be honest buyer cant admit he made a mistake buying wrong model of module for his HP 850 G5 laptop, on HP website is shows correct model, HP lt4132 LTE/HSPA+ 4G Mobile Broadband - one purchased from me lt4112 is older one NOT COMPATIBLE with his laptop https://support.hp.com/gb-en/document/c05903028 I could happily refund but not for posting as item is not faulty, buyers mistake!