Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Does this device have additional USB ports for connecting other USB devices through it?
Document: I bought this and thought it was great for the few times I used it. Now, coincidentally only two days after the return policy ended, the pad prints numbers for the first entry, and that is it - nothing happens when I press the keys again, unless I plug it in again to the ports. Nothing is wrong with the ports because I have interchanged with other ports, and any other device works in those ports.
Works seemlessly with my Lenovo Yoga 11s. Works well in both the USB 2.0 and 3.0 ports. I've had no negative issues. The keypad is well balanced with rubber grip feet, so it stays put while I'm typing on it, even when I'm going fast and really pounding the keys. It has been an excellent purchase for my use. This is a fantastic, lightweight addition to small laptops without the ten-key feature.
This keypad is precisely what I both needed and wanted. I just didn't know that I was buying a used device. But that's OK, it works just fine!
Nice big buttons that are easy to manipulate. Instantly recognized by my computer when I plugged in the USB. Works just the way it should
I completely overlooked the line about the keypad's compatibility -thinking it's USB, should work with anything. So not the case. Make sure you check the compatibility :)
Excellent product, keys are nice and big. Wife uses for accounting daily with no issues. Adding these additional words because Amazon makes me
I have a 14&#34; laptop with no number pad. This USB keypad was perfect for my accounting homework. Now I just use it all the time whenever I'm filling out contact info or credit card info. Great price and functionality!
After reading a lot of other reviews, I realized how necessary a TAB key is for a numeric keypad.Glad I found this one.It types well (tested it for a few days). Very easy to use: just plug into USB port on your computer & you're good to go.
I bought this just for mapping buttons for gaming and it works awesome! The only thing I had to do is buy a USB extension cableAmazonBasics USB 2.0 A-Male to A-Female Extension Cable (3.3 Feet/1.0 Meter)since my computer is underneath the desk and the cable that comes with it is very short.
I just enrolled in an Accounting class and will be doing a lot of data entry into spreadsheets. I needed something that attached to my laptop because entering numbers all from number row is tedious and not very efficient. I needed this so bad I paid for overnight shipping! The product arrived just in time for me to complete my first Accounting assignment with a day to spare. Even with the overnight shipping cost the USB keypad was well worth the cost.
Answer: No extra ports. Just that one cable you see at the top