My original bill was missing from the package, the customer service dispatches duplicates, I can print online but it is not an authentic document. The delivery time has been met, the shipping overpack the manufacturer's box was ok. The adapters CPL NEATGEAR: easy implementation, succinct but clear instructions, just what it takes not need more. Installation of single-phase electric network in 1975 newest table neufbox NB4, classic TV decoder, TV on computer, via WiFi BOX NB4 SFR, it all works together without apparent loss of flow, all LEDs are solid green CPL and above this is stable, which is important. Heat emission, lightweight warmth, this is correct. Note on security (encryption) network: Without control software it is not possible to make sure that encryption is effective after applying the procedure described in the manual. I havent found anything yet for this control on the NETGEAR support. After a few weeks of use JobServe that the sleep mode is good for the CPL PC side but is not always for the CPL BOX side, perhaps this is due to a network activity that is not apparent to follow. Quality / great price, the presence of 3 RJ45 cables of 2 meters is not negligible, ny there aa not to buy the extra. Having been in possession of a modem / router with WiFi javais satisfied i renewed my choice on the NETGEAR brand. I am satisfied with my purchase.