Do not believe the comments lightly. I have long hesitated to conclude the purchase, and I started. This product meets perfectly my desires; is integrated perfectly complement the keyboard without any color difference. The coupling was done without any difficulty; do not forget to validate the figures by coupling the "enter" key on the numeric paver. The initiation of the analog digital keyboard and paver is not a button. The paver Digital takes a few seconds to connect, but really not annoying at all. I do not regret my purchase and I recommend it to anyone who like me has septique.Quant remains the matter of the paver, (plastic) no difference is perceptible. I showed it to one of my friends, and if I had not told her that it was plastic, it was not even do appercu. very, very good product ...... perfectly complements the Apple keyboard. Congratulations Amazon for its products. when the delivery delay, quite resonnables (4 days)