Is this a 12v DC unit?

Yes it uses 12 volt dc to power it.

i think it is sleeved like this one Antec PRO 80MM 80mm Pro Sleeve Case Fan;; this one is only 1 speed the 3 speed are great . have 2 on an passive cooler for oil submerged pc

Questions & Answers: Antec 761345-75080-6 3-Speed Case Cooling Fan

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Antec 761345-75080-6 80mm 3-Speed Case Cooling Fan

80mm
1500 / 2000 / 2600 RPM 20 / 26 / 34 CFM
18 / 24 / 30 dBA

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