Bought this dell optiplex in Oct 2023.  The DVD Drive goes a long ways into the modem.  I have tried calling them for 3 mos w/no response.  All you can do is leave a message.  I contacted Amazon & they too are not able to reach STG Global.  I cannot be w/out the internet so I did not have a way to charge for a modem get it & then ship STG Global's modem back to them.  The work I do I cannot be w/out internet access & financially I'm not where I can buy another desk top.  And so I Am stuck with a modem that works in all the other ways I just cannot use the DVD.  Would I recommend STG Global....not in the least nor would I ever buy from them again.  Evidently they are quite aware of what they are putting out to customers otherwise....why would they not be answering the phone calls from the phone number they send with their product(s)???!!!  Buyer Beware...!!