Would have been better if you could explain what a RDP is in the first place and what is the benefit of a 'clean' one ? Is it any custom software you are selling or something nulled with clean codes ?
RDP is another word for a window VPS and it stands for Remote Desktop Protocol.
@ OP, you did not mention the rdp specs which is very important for sales, are this hacked accounts, shared,dedicated or what ?
Also tell us what are those things accepted on the rdp.