do not recommend the F2 product
I purchased the F2 a little over a year ago, which has the dual monitors attached by arms. A month or two after the warranty expired, one monitor stopped working. The VGA connection port on it is visibly loose, and new cables don't fix the problem. The same cable configuration attached to the working monitor work just fine. I was offered a $24.20 discount on a new purchase (20%), or $90.00 to ship out a refurb of the entire unit. Here are my concerns: 1. The monitor should have worked for longer than 14 months 2. They should have a replacement option for the single monitor, not force me to spend $90.00 for the complete unit 3. My cheapest option was to buy the right hand single monitor setup, which does not connect to the original left hand arm of the one that was broken (I have it free standing rather than attached now). A $25.00 discount on that is way too little for a product that should have lasted longer. A sturdy video port connection is crucial for portable monitors. I use this unit for work and while it gets packed up and moved frequently, it's used as intended on a stable desk with no unusual stressors. For these reasons, I don't recommend the product and will be shopping for a more reliable set.