both part numbers, DS05020B12H and DS05020R12H listed in title. "B" for ball bearing, "R" for hydraulic bearing. Which are you shipping?

The product title includes both part numbers, DS05020B12H and DS05020R12H.

50mm ok 50 x ? x? or ? x 50 x? ? x? x 50?

I have not yet received my fans, but off hand I would say that they are 50mm tall, 50mm wide, and 20mm deep/thick. I will measure them when I receive them and post an update.

Questions & Answers: AVC 5CM 50*50*20MM 5*5CM 5020 12V 0. 25A DS05020B12H DS05020R12H 4-wire PWM function cooling fan case cooler

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AVC 5CM 50*50*20MM 5*5CM 5020 12V 0. 25A DS05020B12H DS05020R12H 4-wire PWM function cooling fan case cooler

50mm
2 Ball

$11^.17 –