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Best Buy customers often prefer the following products when searching for power supply extension cables.

Power supply extension cables are a must-have for any computer user. These cables can help you to connect your power supply to an existing outlet, or allow you to extend the distance between the source and the outlet. They also help when you are using multiple power supplies in a system. Browse the top-ranked list of power supply extension cables below along with associated reviews and opinions.

Main Results
  1. Apple - Power Adapter Extension Cable - White - Front_Zoom
    Top comment

    "Great extension cable...Great power cable extension for any Macbook power supply. ...Good addition to your power supply...I needed a quick extension because I needed a fast replacement for my power supply. this worked great in an addition to the brick."

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    Product Description

    The Power Adapter Extension Cable is an AC extension cord that provides extra length for your Apple power adapter. Use it with MagSafe and MagSafe 2 adapters and 10W, 12W, and 29W USB power adapters.
    See all Laptop Chargers & Adapters
    Top comment

    "Great extension cable...Great power cable extension for any Macbook power supply. ...Good addition to your power supply...I needed a quick extension because I needed a fast replacement for my power supply. this worked great in an addition to the brick."

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    Product Description

    The Power Adapter Extension Cable is an AC extension cord that provides extra length for your Apple power adapter. Use it with MagSafe and MagSafe 2 adapters and 10W, 12W, and 29W USB power adapters.
    See all Laptop Chargers & Adapters
    See all Laptop Chargers & Adapters
  2. Insignia™ - 18" Low-Profile Extension Cable - White - Front_Zoom
    Top comment

    "Excellent low profile power cable...I used this cable as an extension for a network switch. It worked well for that purpose. ...Perfect for my needs too extend a power supply for my desk"

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    Product Description

    Never struggle to fit an extension cord behind a hard-to-reach appliance or piece of furniture again. The Insignia NS-PWRPLPX 18" Low-Profile Extension Cable with a flat plug helps you reach those tight spaces. An 18" cord lets you power appliances such as power tools, electronics and much more, without the hassle of excess cable. A white color camouflages the cord allowing it to match with most modern electronics. The grounded outlet delivers reliable power and keeps your devices safe. Leave the struggles behind and extend the length of your existing power cord.
    See all Power & Extension Cords
    Top comment

    "Excellent low profile power cable...I used this cable as an extension for a network switch. It worked well for that purpose. ...Perfect for my needs too extend a power supply for my desk"

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    Product Description

    Never struggle to fit an extension cord behind a hard-to-reach appliance or piece of furniture again. The Insignia NS-PWRPLPX 18" Low-Profile Extension Cable with a flat plug helps you reach those tight spaces. An 18" cord lets you power appliances such as power tools, electronics and much more, without the hassle of excess cable. A white color camouflages the cord allowing it to match with most modern electronics. The grounded outlet delivers reliable power and keeps your devices safe. Leave the struggles behind and extend the length of your existing power cord.
    See all Power & Extension Cords
    See all Power & Extension Cords
  3. Insignia™ - 12' 3-Outlet Extension Cable - White - Front_Zoom
    Top comment

    "solid, good connection,and long enough for extension the main power supply....Extension cord!...Its a power extension cord that extends your ability to plug in things for power! "

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    Product Description

    When your device’s cord doesn’t reach the power outlet, it’s time for another solution. The Insignia NS-PWRX30T 12' 3-Outlet Extension Cable is here to help. Its generous 12 ft. cord length offers flexible placement options around your room, and three AC outlets let you connect multiple devices at one time. Its low-profile plug hugs the wall, keeping it close to the wall and out of the way. The 45° offset plug is grounded for safety and angled to leave other outlets accessible. Its 16-gauge construction makes it ideal for indoor use with small electronics while its simple white color blends seamlessly with many outlet plate covers. Now you can put your devices wherever they’re needed, regardless of power outlet placement.
    See all Power & Extension Cords
    Top comment

    "solid, good connection,and long enough for extension the main power supply....Extension cord!...Its a power extension cord that extends your ability to plug in things for power! "

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    Product Description

    When your device’s cord doesn’t reach the power outlet, it’s time for another solution. The Insignia NS-PWRX30T 12' 3-Outlet Extension Cable is here to help. Its generous 12 ft. cord length offers flexible placement options around your room, and three AC outlets let you connect multiple devices at one time. Its low-profile plug hugs the wall, keeping it close to the wall and out of the way. The 45° offset plug is grounded for safety and angled to leave other outlets accessible. Its 16-gauge construction makes it ideal for indoor use with small electronics while its simple white color blends seamlessly with many outlet plate covers. Now you can put your devices wherever they’re needed, regardless of power outlet placement.
    See all Power & Extension Cords
    See all Power & Extension Cords
  4. Hyperkin - 9' 2-in-1 VR Extension Cable for Oculus Rift S/Valve Index/HTC Vive - Black - Front_Zoom

    Product Description

    Compatible with HTC Vive/HTC Vive Pro/HTC Vive Cosmos/Valve Index/Oculus Rift S. Provides extra length via DisplayPort 1.2 and USB 3.0 inputs.Functionality may vary depending on VR setup. This cable does not extend your power supply cable. Extension cables for your power source are not included.
    See all Cell Phone A/V Adapters

    Product Description

    Compatible with HTC Vive/HTC Vive Pro/HTC Vive Cosmos/Valve Index/Oculus Rift S. Provides extra length via DisplayPort 1.2 and USB 3.0 inputs.Functionality may vary depending on VR setup. This cable does not extend your power supply cable. Extension cables for your power source are not included.
    See all Cell Phone A/V Adapters
    See all Cell Phone A/V Adapters
  5. Insignia™ - 12' USB 3.0 A-Male to A-Female Extension Cable - Black - Front_Zoom
    Top comment

    "Decent cables...I use these for an extension for a usb light. They work great...Excellent extension for LED strip behind TV...Works great as an extension for an LED strip I needed extra length to plug into the TV. "

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    Product Description

    Don’t let the length of your cables stop you from creating an ideal setup. With the Insignia NS-PC3A3A12 12' USB 3.0 A-Male to A-Female Extension Cable extend the length of your USB cable to connect your printer, keyboard and other devices. With a simple plug-and-play connection, just insert the male connector into your device’s USB port and your existing USB cable into the other end and enjoy the extension with no additional setup required. Supporting data transfer speeds up to 5 Gbps, you can trust that this extension cable will deliver the speed you need. An impressive 12 ft. (3.7 m) length allows flexible placement options and reach. Nickel-plated connectors and a durable PVC cable ensure the lasting usability you need. Connect your USB devices the way you like with this extension cable.
    See all USB Cables & Adapters
    Top comment

    "Decent cables...I use these for an extension for a usb light. They work great...Excellent extension for LED strip behind TV...Works great as an extension for an LED strip I needed extra length to plug into the TV. "

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    Product Description

    Don’t let the length of your cables stop you from creating an ideal setup. With the Insignia NS-PC3A3A12 12' USB 3.0 A-Male to A-Female Extension Cable extend the length of your USB cable to connect your printer, keyboard and other devices. With a simple plug-and-play connection, just insert the male connector into your device’s USB port and your existing USB cable into the other end and enjoy the extension with no additional setup required. Supporting data transfer speeds up to 5 Gbps, you can trust that this extension cable will deliver the speed you need. An impressive 12 ft. (3.7 m) length allows flexible placement options and reach. Nickel-plated connectors and a durable PVC cable ensure the lasting usability you need. Connect your USB devices the way you like with this extension cable.
    See all USB Cables & Adapters
    See all USB Cables & Adapters
  6. Insignia™ - 6' USB 3.0 A-Male to A-Female Extension Cable - Black - Front_Zoom
    Top comment

    "Awesome USB Power Supply Cable...I purchased this cable for extending the power supply cable to my security camera. ...Usb extension...Perfect wire for extension for usb and the power supply is very good as well."

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    Product Description

    Don’t let the length of your cables stop you from creating an ideal setup. With the Insignia NS-PC3A3A6 6' USB 3.0 A-Male to A-Female Extension Cable extend the length of your USB cable to connect your printer, keyboard and other devices. With a simple plug-and-play connection, just insert the male connector into your device’s USB port and your existing USB cable into the other end and enjoy the extension with no additional setup required. Supporting data transfer speeds up to 5 Gbps, you can trust that this extension cable will deliver the speed you need. A 6 ft. (1.8 m) length allows flexible placement options and reach. Nickel-plated connectors and a durable PVC cable ensure the lasting usability you need. Connect your USB devices the way you like with this extension cable.
    See all USB Cables & Adapters
    Top comment

    "Awesome USB Power Supply Cable...I purchased this cable for extending the power supply cable to my security camera. ...Usb extension...Perfect wire for extension for usb and the power supply is very good as well."

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    Product Description

    Don’t let the length of your cables stop you from creating an ideal setup. With the Insignia NS-PC3A3A6 6' USB 3.0 A-Male to A-Female Extension Cable extend the length of your USB cable to connect your printer, keyboard and other devices. With a simple plug-and-play connection, just insert the male connector into your device’s USB port and your existing USB cable into the other end and enjoy the extension with no additional setup required. Supporting data transfer speeds up to 5 Gbps, you can trust that this extension cable will deliver the speed you need. A 6 ft. (1.8 m) length allows flexible placement options and reach. Nickel-plated connectors and a durable PVC cable ensure the lasting usability you need. Connect your USB devices the way you like with this extension cable.
    See all USB Cables & Adapters
    See all USB Cables & Adapters
  7. Rocketfish™ - 4' Toslink Optical Audio Cable - Black - Front_Zoom
    Top comment

    "Works great. Fits well, and powers the sonos clearly and powerfully....Rocketfish is my go to when it comes to technology supplies. The sound quality is good when installed to good equipment."

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    Product Description

    Complete your entertainment setup with this Rocketfish premium optical cable, featuring 4 feet of extension for ideal placement. Compatible with slimline audio components for a reliable compact connection, this optical cable offers effortless plug-and-play function. This Rocketfish premium optical cable uses a digital audio signal for clear sound reproduction and immersive enjoyment.
    See all A/V Cables & Connectors
    Top comment

    "Works great. Fits well, and powers the sonos clearly and powerfully....Rocketfish is my go to when it comes to technology supplies. The sound quality is good when installed to good equipment."

    See all customer reviews

    Product Description

    Complete your entertainment setup with this Rocketfish premium optical cable, featuring 4 feet of extension for ideal placement. Compatible with slimline audio components for a reliable compact connection, this optical cable offers effortless plug-and-play function. This Rocketfish premium optical cable uses a digital audio signal for clear sound reproduction and immersive enjoyment.
    See all A/V Cables & Connectors
    See all A/V Cables & Connectors
  8. Lorex - 100’ 4K In-wall RG59 to RG59 BNC Video/Power UL CM Cable with Fire-Resistant - Black - Front_Zoom
    Top comment

    "These Premium 4K RG59 cables...These Premium 4K RG59 cables list as an extension. They are not exactly an extension. ...Good cables...Online reviews said the off brands fail or have bad signal. Used these as extensions. Worked flawlessly. Great signal. Bought the “open box” version. "

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    Product Description

    Extend the distance on any analog HD (CVI/TVI/AHD/MPX) or analog (CVBS) security camera with this premium 100ft 4K compatible CM rated (in-wall) siamese (video and power) coax cable. This cable has been tested and certified for any Lorex branded 4K analog camera. It has also been tested to work with any brand analog HD security camera up to 5MP resolution.
    See all Surveillance Camera Cables
    Top comment

    "These Premium 4K RG59 cables...These Premium 4K RG59 cables list as an extension. They are not exactly an extension. ...Good cables...Online reviews said the off brands fail or have bad signal. Used these as extensions. Worked flawlessly. Great signal. Bought the “open box” version. "

    See all customer reviews

    Product Description

    Extend the distance on any analog HD (CVI/TVI/AHD/MPX) or analog (CVBS) security camera with this premium 100ft 4K compatible CM rated (in-wall) siamese (video and power) coax cable. This cable has been tested and certified for any Lorex branded 4K analog camera. It has also been tested to work with any brand analog HD security camera up to 5MP resolution.
    See all Surveillance Camera Cables
    See all Surveillance Camera Cables
  9. Belkin - 4-Port USB Power Extender - White - Front_Zoom

    Model: BUZ001tt2MWHB7
    SKU: 6549379
    Top comment

    "My power supply is limited because I share my spare with co coworkers. ...Extension...[This review was collected as part of a promotion.] This 4 port power extender is great. Think of it as an extension cord for phones. "

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    Product Description

    Bring power where you need it with our 4-Port USB Power Extender. The 6.6 -foot/2-meter cable provides easy access to four USB ports: in the backseat of the car, office, home or hotel. It's simple and convenient to have a neat charging environment for multiple devices
    See all Power Adapters
    Top comment

    "My power supply is limited because I share my spare with co coworkers. ...Extension...[This review was collected as part of a promotion.] This 4 port power extender is great. Think of it as an extension cord for phones. "

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    Product Description

    Bring power where you need it with our 4-Port USB Power Extender. The 6.6 -foot/2-meter cable provides easy access to four USB ports: in the backseat of the car, office, home or hotel. It's simple and convenient to have a neat charging environment for multiple devices
    See all Power Adapters
    See all Power Adapters
  10. Night Owl - 100 ft. Cat-5e Ethernet Cable - Black - Front_Zoom
    Top comment

    "Works for when you need a longer cable...Worked great and was an easy install for when the included 60ft cable was not long enough....Perfect Extension"

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    Product Description

    Create quality connections between devices with this Night Owl Ethernet cable. Use the 100-foot spool to carry Internet connectivity across long distances in shops or industrial settings. Standard Cat5e design supplies remote cameras in an NVR system with both an uplink and a power supply for convenient utility. This Night Owl Ethernet cable is black for inconspicuous installation.
    See all Ethernet Cables
    Top comment

    "Works for when you need a longer cable...Worked great and was an easy install for when the included 60ft cable was not long enough....Perfect Extension"

    See all customer reviews

    Product Description

    Create quality connections between devices with this Night Owl Ethernet cable. Use the 100-foot spool to carry Internet connectivity across long distances in shops or industrial settings. Standard Cat5e design supplies remote cameras in an NVR system with both an uplink and a power supply for convenient utility. This Night Owl Ethernet cable is black for inconspicuous installation.
    See all Ethernet Cables
    See all Ethernet Cables
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