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Side-by-side comparison of 2 motherboards

Specification	ASUS PRO B660M-C D4-CSM	ASUS PRIME B660M-A D4-CSM
Price (new) (differs)	not stated	£106.89as of 20 Sep, 06:20
RRP (differs)	£182.99	£176.45
Newest PCIe generation stated (differs)	not stated	PCIe 4.0
Wired LAN (differs)	not stated	1GbE
Fastest USB-C port (differs)	not stated	5 Gbps
Amazon sales rank (differs)	#58,637	#135,168
Buy	See it on Amazon	Check price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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