Now to TP-Link's defense they do list hardware revision in small letters just by the barcode on the side of the box and if you dig into their specification sheets you'll find out all, but aparently they don't bother going into details with their retailers. So for 250-300 bucks you may have ended up extremely happy or quite dissapointed depending which version you got. As a result you could have purchased, unknowigly a router with 360, 640 or 980 mbps peak NAT translation capability. As an example TL-ER6120 which is a fairly decent multi-wan vpn router was for a time sold in 3 hardware revisions for a same price, and while one would have twice the onboard memory, and completely different cpu. What makes things even more confusing is that several hardware revisions may be on sale at the same time. Sometimes even shops that sell them are not familiar with what the differences are between hardware revisions. One thing to consider in relation to TP-Link in particular that hardware they sell may share same name and yet have significatly varied hardware under the same chasis.

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