We're sorry, but this item is no longer for sale. However, there may be more External Drive Accessories » External Drive Power Supplies » For 3.5" & Optical External Drives items available.

We recommend 12V 6.0Amp Barrel Style AC Power Adapter for the OWC Thunderbolt 2 Dock (Mfr P/N: TB2DOCKPWR) from Other World Computing for $17.99 as a suitable alternative.


6.0Amp Barrel-Style Power Adapter
for Mercury Elite Pro Dual Thunderbolt & ThunderBay 4 mini

This power adapter is for certain OWC storage solutions and enclosures with a DC 12V power input accepting a barrel type connector including the Mercury Elite Pro Dual and the Thunderbay 4 mini storage solutions.
Make sure you have the right adapter.
This power adapter is NOT compatible with 4 or 5 pin plugs used with OWC Mercury Elite, OWC Mercury Elite-AL, OWC Neptune, and NewerTech miniStack storage solutions/enclosures. Those adapters require a DC 5V/12V Power adapter accepting a 4, or 5 pin style connector.

Product Specifications:

OWC Part Number


AC Input

  • 100-240VAC @50-60Hz / 2.0Amp Max

DC Output

  • +12V/6.0Amp

Output Connection

  • 5.5mm concentric barrel connector

Power Indicator

  • Yes

Brick Dimensions

  • 5.13" x 2.38" x 1.38"
    (13.03 x 6.05 x 3.51 cm)

Cord Length

  • 3.6feet (109cm)


  • CE / UL /ROHS


  • 1.3 lbs. (0.59 kg)


Manufacturer provided specifications for Other World Computing p/n TBDTB4MPWR UPC#: 0837742002753
The Power Adapter is compatible with...
OWC Mercury Elite Pro Dual Thunderbolt
OWC Mercury Elite Pro Dual Thunderbolt
Thunderbay 4 mini
OWC Thunderbay 4 mini
Thunderbay 4 mini
OWC Thunderbolt 2 Dock
*Double check your connection. Make certain you have a barrel style power connector before ordering!
OWC 6.0Amp Barrel-Style Power Adapter Mfr P/N: TBDTB4MPWR OWC SKU: OWCTBDTB4MPWR for Mercury Elite Pro Dual Thunderbolt & ThunderBay 4 mini 1 Year OWC Limited Warranty
Sold Out