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That's a good price. It seems like it would work from the testimonials, but I didn't see anything that guarenteed compatibility. Perhaps consider spending another 10 bucks, and get it from a place like datamem.com. ($98.00). To me it's worth it to buy something that's guarenteed to work, so I don't have to deal with the situation of it not working. That's just my opinion.
 
Check the user reviews. Someone is successfully running it in their iMac. The cheaper stuff had people running it in their Macs fine as well. If it doesn't work, send it back for a replacement or refund. I shop at Newegg all the time.
 
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