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They’re the same, SamG. The MX55EC3 is just a BestBuy model number.
Sorry, there was a problem. Please try again later.$50,speed rating of AX5400 and 5300, but seemingly otherwise identical. I just finished posting a review and I do not recommend the MX55EC3 at all. Not only does it have a slightly lower speed rating of AX5300, it also has a higher MSRP. If you're considering the Atlas Pro 6, get the MX5503 and avoid the former at all cost. The former is pretty much a "dead on arrival" product and the price makes absolutely no sense.
Sorry, there was a problem. Please try again later.Same product the Best Buy only model they buy in big batches for sales. If inventory on the MX5503 is high they will mark it down from $599 to $499 (the year 2022). The MX55EC will go on sale for $$249 when they have lots of stock. The AX5300 rating is because Best Buy had this product for 6 months exclusively. The rating was raised to AX5400 when it went general availability outside best buy because. The 5400/5300 was a math error
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