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Power DC Extension Cables

1ft 2.1mm x 5.5mm DC Power Extension Cable with On/Off Rocker Switch, 20 AWG BLACK - AC-DC PowerShack
1ft 2.1mm x 5.5mm DC Power Extension Cable with On/Off Rocker Switch, 20 AWG BLACK - AC-DC PowerShack
$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50

1ft 2.1mm x 5.5mm DC Power Extension Cable with On/Off Rocker Switch, 20 AWG BLACK

PHC Enterprise
5+ in stock

Part #: HSQ1 2.1mm x 5.5mm Extension Cable for Power Adapter with ON/OFF switch Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 1 f...

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$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50
3ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK - AC-DC PowerShack
HDCQ3 3ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG - AC-DC PowerShack
$5.00 - $5.00
$5.00
$5.00 - $5.00
$5.00

3ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK

PHC Enterprise, Inc.
5+ in stock

Part #: HDCQ3 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 3 ft Gauge: 20 BLACK ...

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$5.00 - $5.00
$5.00
$5.00 - $5.00
$5.00
3ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE - AC-DC PowerShack
HDCQ3W 3ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG, WHITE - AC-DC PowerShack
$5.00 - $5.00
$5.00
$5.00 - $5.00
$5.00

3ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE

PHC Enterprise, Inc.
5+ in stock

Part #: HDCQ3W 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 3 ft Gauge: 20 WHIT...

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$5.00 - $5.00
$5.00
$5.00 - $5.00
$5.00
6ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK - AC-DC PowerShack
HDCQ6 6ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG - AC-DC PowerShack
$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50

6ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK

PHC Enterprise, Inc.
5+ in stock

Part #: HDCQ6 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 6 ft Gauge: 20 BLACK...

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$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50
6ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE - AC-DC PowerShack
HDCQ6W 6ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG, WHITE - AC-DC PowerShack
$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50

6ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE

PHC Enterprise, Inc.
5+ in stock

Part #: HDCQ6W 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 6 ft Gauge: 20 WHITE...

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$3.50 - $3.50
$3.50
$3.50 - $3.50
$3.50
12ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK - AC-DC PowerShack
HDCQ12 12ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG - AC-DC PowerShack
$5.30 - $5.30
$5.30
$5.30 - $5.30
$5.30

12ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK

PHC Enterprise
5+ in stock

Part #: HDCQ12 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 12 ft Gauge: 20 BLAC...

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$5.30 - $5.30
$5.30
$5.30 - $5.30
$5.30
12ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG, WHITE - AC-DC PowerShack
HDCQ12W 12ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG, WHITE - AC-DC PowerShack
$5.30 - $5.30
$5.30
$5.30 - $5.30
$5.30

12ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG, WHITE

PHC Enterprise
5+ in stock

Part #: HDCQ12W 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 12 ft Gauge: 20 WHI...

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$5.30 - $5.30
$5.30
$5.30 - $5.30
$5.30
25ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK - AC-DC PowerShack
HDCQ25 25ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG - AC-DC PowerShack
$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50

25ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK

PHC Enterprise
5+ in stock

Part #: HDCQ25 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 25 ft Gauge: 20 BLAC...

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$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50
20ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE - AC-DC PowerShack
HDCQ20W 20ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG, WHITE - AC-DC PowerShack
$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50

20ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG WHITE

PHC Enterprise
5+ in stock

Part #: HDCQ20W 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 20 ft Gauge: 20 WHI...

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$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50
50ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK - AC-DC PowerShack
HDCQ50 50ft 2.1mm x 5.5mm DC Plug Extension Cable, 20 AWG - AC-DC PowerShack
$13.00 - $13.00
$13.00
$13.00 - $13.00
$13.00

50ft 2.1mm x 5.5mm DC Power Extension Cable, 20 AWG BLACK

PHC Enterprise, Inc.
5+ in stock

Part #: HDCQ50 2.1mm x 5.5mm Extension Cable for Power Adapter Female Jack: 2.1mm x 5.5mm Male Plug: 2.1mm x 5.5mm Length: 50ft Gauge: 20 BLAC...

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$13.00 - $13.00
$13.00
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Variable Transformer (NEW) 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION & LED Volt Meter - AC-DC PowerShack

Variable Transformer

Isolation Transformer

117VAC to 117VAC

AC-AC Power Supplies

Universal Power Supply

DC Plug Size Conversion

An easy DIY way to change the DC 2.1x5.5mm plug to another size

DC Power Extension Cables

Perfect solutions for LED lighting, security cameras, & web cams

Adjustable DC Power Supply

Universal Power Supplies

Selectable Multi-voltage Power Supply

With 6-interchangble DC plugs

Go to
AC-DC Universal Selectable Power Adapter Multi Voltage Output: 3VDC-15VDC @ 1000mA; Part # PHC-1000K - 2731121

Adjustable DC Power Supply

3-15VDC @4 amp
3-15VDC @4 amp
3~15VDC @ 2A DC Regulated Switching Tattoo Power Supply; Part # 5486 - AC-DC PowerShack
Save 40% Save %
$20.00
$20.00 - $20.00
$20.00
$12.00
$12.00 - $12.00
$12.00

3~15V DC @ 2A DC Regulated Switching Tattoo Power Supply

Superior Tattoo
5+ in stock

Part #: 5486 Closeout Special Input Voltage: 90~120VAC Output Voltage: 3~15VDC Output Current: 2A Requires 1/4" foot switch (H4-M) to operate. Sol...

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$20.00
$20.00 - $20.00
$20.00
$12.00
$12.00 - $12.00
$12.00
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3~15VDC @ 2A DC Regulated Switching Tattoo Power Supply; Part # PS-10T - AC-DC PowerShack
3~15VDC @ 2A DC Regulated Switching Tattoo Power Supply; Part # PS-10T - AC-DC PowerShack
Save 50% Save %
$34.99
$34.99 - $34.99
$34.99
$17.50
$17.50 - $17.50
$17.50

3~15VDC @ 2A DC Regulated Switching Tattoo Power Supply

PHC Enterprise, Inc.
5+ in stock

Part #: PS-10T  Closeout Special Input Voltage: 90~120VAC Output Voltage: 3~15VDC Output Current: 2A Precision 10-Pot Turn dial Requires 1/4" foot...

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$34.99
$34.99 - $34.99
$34.99
$17.50
$17.50 - $17.50
$17.50
Save 50% Save %
Adjustable 3~15VDC @ 4A DC Regulated Switching Power Supply (BLACK); Part # APS-415 - AC-DC PowerShack
Adjustable 3~15VDC @ 4A DC Regulated Switching Power Supply (BLACK); Part # APS-415 - AC-DC PowerShack
Save 25% Save %
$39.99
$39.99 - $39.99
$39.99
$30.00
$30.00 - $30.00
$30.00

Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A

PHC Enterprise, Inc.
5+ in stock

Part #: APS-415 Input Voltage: 117VAC Output Voltage: Adjustable 3~15VDC Output Current: 4A W/Banana Jacks Color: Black Dimensions: 6.5" x 4.5" x ...

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$39.99
$39.99 - $39.99
$39.99
$30.00
$30.00 - $30.00
$30.00
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Adjustable 3~15VDC @ 4A DC Regulated Switching Power Supply (YELLOW); Part # APS-415Y - AC-DC PowerShack
Adjustable 3~15VDC @ 4A DC Regulated Switching Power Supply (YELLOW); Part # APS-415Y - AC-DC PowerShack
Save 25% Save %
$39.99
$39.99 - $39.99
$39.99
$30.00
$30.00 - $30.00
$30.00

Adjustable DC Regulated Switching Power Supply (YELLOW) 3~15VDC @ 4A

PHC Enterprise, Inc.
5+ in stock

Part #: APS-415Y Input Voltage: 117VAC Output Voltage: Adjustable 3~15VDC Output Current: 4A W/Banana Jacks Color: YELLOW Dimensions: 6.5" x 4.5" ...

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$39.99
$39.99 - $39.99
$39.99
$30.00
$30.00 - $30.00
$30.00
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2~24VDC @ 7A DC Regulated Switching Power Supply; Part # APS-724K - AC-DC PowerShack
2~24VDC @ 7A DC Regulated Switching Power Supply; Part # APS-724K - AC-DC PowerShack
$85.00 - $85.00
$85.00
$85.00 - $85.00
$85.00

2~24V DC @ 7A DC Regulated Switching Power Supply

PHC Enterprise
5+ in stock

Part #: APS-724K Input Voltage: 120VAC Output Voltage: 2~24VDC Output Current: 7A Replaced PHC Part # APS-715

$85.00 - $85.00
$85.00
$85.00 - $85.00
$85.00
0~30VDC @ 0~10A DC Regulated Switching Power Supply (Dual Adjustable) - AC-DC PowerShack
0~30VDC @ 0~10A DC Regulated Switching Power Supply (Dual Adjustable) - AC-DC PowerShack
Save 14% Save %
$99.00
$99.00 - $99.00
$99.00
$85.00
$85.00 - $85.00
$85.00

0~30VDC @ 0~10A Dual Adjustable Regulated Switching Power Supply

PHC Enterprise
Only 2 left!

Part #: R-SPS3010 Input Voltage: 115VAC @60Hz Regulated Switching Power Supply Output Voltage: 0~30VDC (30V Maximum Output Voltage) Output Curren...

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$99.00
$99.00 - $99.00
$99.00
$85.00
$85.00 - $85.00
$85.00
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Blog posts

  • When you may need an isolation transformer
    May 1, 2023

    When you may need an isolation transformer

    An isolation transformer can help reduce RF power noise in an electrical system. An isolation transformer is designed to provide electrical isolation between the input and output circuits, typically by using a transformer with a 1:1 ratio. This isolation helps...

    Read now
See more

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Let customers speak for us

from 140 reviews
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity

Good quality. Very happy with my purchase

Eddie Luna
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Worked oerfectly

Exactly as ordered. Powered Christmas display of moving ice skaters. Fun for everyone!

Loren Gifford
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
500VA Isolation Transformer, 117VAC to 117VAC
Great product

It did a good job as advertised. I was getting a hum when I turned on my subwoofer. I plugged the sub directly to the isolation transformer. It decreased it by about 90%. Maybe if I plug my sub into my power conditioner and then plug the power conditioner into the transformer it might eliminate the hum completely. I have not tried it yet. Have not had time,but the hum is barely noticeable now. I have to get very close to the sub to detect it. Very happy even with the 90% hum reduction
I'll will definitately keep it
Great product..

Mike Dunn
500VA Isolation Transformer, 117VAC to 117VAC
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
Excellent price and it comes with an output meter!

It's hard to beat the price for a variable isolation transformer. Works well.

Barry Penfold Curtiss-Wright
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC/AC for the win

Used these to power my legacy Hallmark Star Trek ornaments and they work great. AC/AC is hard to find and the Powershack had these quality units and shipped them quick. Wish I’d had another option besides USPS for shipping but otherwise great product and experience.

GHammond
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Exactly what I needed

Product came on time exactly as described. Worked perfectly.

Lin Cook
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
Replacement Power Supply

This was a replacement for one of my Village Square Christmas houses. I've been looking for years actually and then stumbled upon AC-DC Power Shack. What a great find. Hans was quick to respond to my inquiry and extremely helpful. The replacement works perfectly. I couldn't be happier!

DO
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Our extender went down for our RFD door locks. The transformer was bad. To order another one from the lock company was going to cost $45- and 4-6-weeks delivery. AC/DC Power Shack was cheaper and quicker, and it works perfectly.

John Pestoff
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-DC Linear Power Supply 12V DC @ 500mA; 3.5 MALE (+) center polarity
Great item

Worked like it was suppose to , price good, shipment on time ! Satisfied customer !
Thanks

Glenn White
AC-DC Linear Power Supply 12V DC @ 500mA; 3.5 MALE (+) center polarity
AC-DC Linear Power Supply 12V DC @ 50mA; 2.1 x 5.5mm (+) center polarity
power supplies

I haven't used them yet, but I love the very fast shipping time. !!

carlton brumbelow
AC-DC Linear Power Supply 12V DC @ 50mA; 2.1 x 5.5mm (+) center polarity
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
Power Supply No RFI

Good Linear Supply for a good price

Steve Smith
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
1000VA Isolation Transformer, 117VAC to 117VAC
ISO 1000

Seems to be working as it should now. There was a humming or buzzing coming from it when the front switch is off. Not sure if this is normal or not. If the just leave the front switch on it doesn't do the humming or buzzing. The rear main power switch has to remain on per my bench setup so it not easily accessible to keep crawling under the bench to reach up behind to flip the switch. So far it's been working great with my gear as expected.

Chris Mulnix
1000VA Isolation Transformer, 117VAC to 117VAC
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
Amazing Customer Service

I was having trouble finding a power supply cord for my lamp. I wrote an email to AC-DC Power Shack and Hans wrote me back within the hour and helped me choose this and the right accessory. Amazing customer service - highly recommend!! Shipping was also fast.

Gigi Ng
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
ADJUSTABLE DC REGULATED SWITCHING POWER SUPPLY BLACK 3-5V

Well manufactured and easy to use Power Supply complete with all dials, plugs and switches required. Sturdy Painted Box.

Patrick Ditson
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
500VA Isolation Transformer, 117VAC to 117VAC
Decent Quality, Good Service and Affordable.

Heard about the AC-DC Powershack on a YouTube video teaching electronics for vintage radios. They were highly recommended for both product and service. I needed an Isolation Transformer for working on vintage radios. For my projects I don’t expect to need work than a 3 amp isolation transformer and settled for this 5 amp rated model. It does what it’s supposed to do, it got shipped in a reasonable time, ithas been working just fine, and the price was fair. Not much more to say other than I feel a little safer user this isolation transformer.

Kevin Pagliuca
500VA Isolation Transformer, 117VAC to 117VAC