This is my fifth StarTech card that I have bought and they all work great. However, I understand why some reviews mention the difficulty of inserting a USB plug into each port; This is a very tight fit. Try the following: Do not insert the card. Gently insert the card into the motherboard PCI-E slot. Now plug in the plugs and then fix the card with the screw on the housing. If that doesn't work, open the case a little.
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review
Glarks 660 Pieces Phillips Assortment Motherboard
10 Review
Comprehensive 500pcs Laptop Screw Kit Set for π© IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review