Found 3 3D-models for “DC 21mm” across many websites

#21mm#dc jack#DC 21mm#soldering#12vdc#18650 battery#fan#LiPo Battery#3x18650#Adjustable Voltage
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Adjustable Step Up And Step Down Voltage DC Power Supply Box

Adjustable Step Up And Step Down Voltage DC Power Supply Box

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12V 18650 Battery Pack with ON/OFF switch

12V 18650 Battery Pack with ON/OFF switch

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Custom DC Motor Fan! Straight fit for vacuum tube!

Custom DC Motor Fan! Straight fit for vacuum tube!

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