4TH OF JULY DEALS

Save on HDTVs, laptops, cameras and more.

Shop the deals ›

Ends Thursday.

Current Offers
  • (5)
  • (20)
Brand
  • (7)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
Price
  • (9)
  • (2)
  • (1)
  • (4)
  • (4)
Speaker Size
  • (1)
Number of Speakers
  • (1)
  • (1)
Included Components
  • (2)
Installation Type
  • (1)
  • (1)
Color
  • (5)
Inputs Outputs
  • (2)
  • (2)
  • (2)
Customer Reviews
  • (4)
  • (6)
  • (6)
  • (6)
  • (4)
Features
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
Maximum RMS Power
  • (2)
Collection
  • (5)
Condition
  • (20)
  • (3)

Accessories Resources


Accessories Questions

Ask fellow shoppers and Best Buy staff. Share your answers.

Sort by:
Items per page:
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: AT-HD570
  • SKU: 2453074
From our expanded online assortment; de-embeds an HDMI audio signal to either optical or multichannel analog audio outputs; supports high-definition input up to 1080p; 3D capable
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

$279.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: HDMI Extender EL11SB
  • SKU: 1306344256
100 ft RangeNetwork (RJ-45)HDMI In
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: HDMI Extender EL11SA
  • SKU: 1306344263
100 ft RangeNetwork (RJ-45)HDMI In
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 110681
  • SKU: 1310679764
1 Input Device - 2624.67 ft Range - 2 x Network (RJ-45) - 1 x HDMI In - Wall Mountable
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$117.74
On Sale
Save $290.26 (Reg. $408)
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 110228
  • SKU: 1310679115
1 Output Device - 328.08 ft Range - 2 x Network (RJ-45) - Wall Mountable
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$126.69
On Sale
Save $281.31 (Reg. $408)
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: HDMI-EXTC
  • SKU: 4335577
SABRENT HDMI and DVI over Cat-5e Extender Adapter: sender and receiver units; compatible with Cat-5e or Cat-6 cables; HDCP compliant; signal rates up to 2.25Gbits; feedback, equalization and amplification autoadjust
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

$40.99
On Sale
Save $9 (Reg. $49.99)
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: AT-HD4-SI40SR
  • SKU: 2714892
From our expanded online assortment; compatible with most devices with an HDMI output; extends a video signal with up to 1080p or 1920 x 1200 resolution up to 130'; EDID selection; 7.1-channel digital audio support
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

$219.99
On Sale
Save $50 (Reg. $269.99)
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: HDMI-EXTC
  • SKU: 1312359770
SABRENT HDMI and DVI over Cat-5e Extender Adapter: sender and receiver units; compatible with Cat-5e or Cat-6 cables; HDCP compliant; signal rates up to 2.25Gbits; feedback, equalization and amplification autoadjust
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$36.69
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: DHTS514
  • SKU: 2903538
175W power handling; wireless subwoofer with two 5-1/4" drivers; two 2" x 5" mid/woofers; two 1/2" tweeters; Dolby Digital and DTS surround sound; HDMI, optical and coaxial digital and analog inputs; HDMI output
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

$599.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

Rating Breakdown

75%
(56 Reviews)
20%
(15 Reviews)
1%
(1 Review)
3%
(2 Reviews)
1%
(1 Review)
Value for Price:
4.5
Sound Quality:
4.7
Appearance:
4.8
Power:
4.6
  • Model: CINEMA SB400
  • SKU: 4984029
120W built-in amplifier; 8", 200W wireless subwoofer; four 2-1/4" midrange cones; two 1" tweeters; HARMAN Display Surround and Bluetooth technologies; 3 HDMI inputs; HDMI output
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

$499.99
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

Rating Breakdown

66%
(179 Reviews)
27%
(75 Reviews)
4%
(10 Reviews)
1%
(4 Reviews)
2%
(5 Reviews)
Value for Price:
4.1
Sound Quality:
4.7
Appearance:
4.8
Power:
4.4
Select 2 to 4 items to Compare