Two Cooler Master Hyper 212 EVO versions are shown.
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=RR-212E-20PK-R1
(RR-212E-20PK-R1) and (RR-212E-20PK-R2)
What is the difference which explains the pricing of the two?
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=RR-212E-20PK-R1
(RR-212E-20PK-R1) and (RR-212E-20PK-R2)
What is the difference which explains the pricing of the two?