Refurb4Less via eBay offers the Intel Kaby Lake Core i7-7700K 4.2GHz Quad-Core LGA 1151 Processor for $309. Apply coupon code "PJUNESAVINGS10" and check out with PayPal to cut that to $278.10. With free shipping, that's $22 under our May mention and the lowest price we've seen. (It's also the best deal today by $22, although most retailers charge $329 or more.) It features 8MB of cache memory. Deal ends June 9.
Note: This coupon can be used twice per PayPal account.