LABOR DAY DEALS

Save on HDTVs, laptops, tablets and more.

Shop the deals ›


Current Offers

  • (302)
  • (1,324)
  • (54)

Brand

  • (289)
  • (131)
  • (126)
  • (124)
  • (113)
  • (109)
  • (80)
  • (52)
  • (49)
  • (39)
  • (27)
  • (26)
  • (21)
  • (18)
  • (13)
  • (12)
  • (11)
  • (9)
  • (8)
  • (8)
  • (8)
  • (7)
  • (7)
  • (7)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Price

to
  • (113)
  • (56)
  • (43)
  • (60)
  • (58)
  • (321)
  • (319)
  • (203)
  • (68)
  • (53)
  • (74)
  • (37)
  • (16)
  • (22)

Sold By

  • (811)
  • (632)

Cable Type

  • (2)
  • (1)

Wireless Standard

  • (1)
  • (1)

Features

  • (969)
  • (724)
  • (616)
  • (604)
  • (502)
  • (266)
  • (176)
  • (175)
  • (137)
  • (91)
  • (84)
  • (80)
  • (78)
  • (68)
  • (44)
  • (42)
  • (38)
  • (34)
  • (31)
  • (30)
  • (30)
  • (24)
  • (16)
  • (15)
  • (14)
  • (12)
  • (12)
  • (11)
  • (10)
  • (10)
  • (10)
  • (7)
  • (7)
  • (7)
  • (6)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Color

  • (642)
  • (199)
  • (106)
  • (51)
  • (43)
  • (41)
  • (36)
  • (17)
  • (13)
  • (12)
  • (6)
  • (4)
  • (4)
  • (2)
  • (1)

Customer Rating

  • (107)
  • (142)
  • (571)
  • (660)
  • (688)
  • (710)

Length of Cable

  • (1)
  • (1)
  • (1)

Collection

  • (318)
  • (65)
  • (30)
  • (17)
  • (8)

Condition

  • (1,250)
  • (193)
  • (129)

Networking Resources


Networking Questions

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

1,443 items
Sort by:
Items per page:
Plantronics - GameCom 788 Gaming Headset - Black - Larger Front
  • Model: GC788
  • SKU: 1001449
Dolby Headphone and Dolby Pro Logic Iix technologies; sound isolation; 40mm drivers; noise-canceling microphone; built-in earpod spin joints; on-ear volume and mute controls; USB interface
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.

$79.99
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

Linksys - Wireless-AC Dual-Band Smart Wi-Fi Router with 4-Port Gigabit Ethernet Switch - Black - Larger Front
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

Insignia™ - 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable - Black - Larger Front
  • Model: NS-PU99501
  • SKU: 5883029
Connects a device with an RS-232 (DB9) serial port to a USB hub or computer; supports data transfer rates of more than 115 Kbps; PC and Mac compatible
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.

$19.99
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

Startech - 1 Port Professional USB to Serial Adapter Cable with COM Retention - Black - Angle
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.

$28.99
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

Belkin - 3-Port USB 3.0 Hub with Gigabit Ethernet Adapter - Black - Larger Front
  • Model: B2B128TT
  • SKU: 8733429
Compatible with most Windows and Mac laptops with a USB 3.0 port and most USB 3.0-enabled peripherals; 3 USB 3.0 ports; Gigabit Ethernet adapter; small form factor
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.

$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

Dynex™ - 16" USB PDA/Serial Adapter Cable - Larger Front
  • Model: DX-UBDB9
  • SKU: 7135664
Connects a device with a serial port to a USB hub or computer; PC and Mac compatible
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

Insignia™ - USB 2.0-to-Ethernet Adapter - White - Larger Front
  • Model: NS-PU98505
  • SKU: 6233049
Provides connectivity to wired networks via a USB 2.0 port; 10 Mbps Ethernet; driver CD
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.

$19.99
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

Startech - 1 Port Professional USB to Serial Adapter Cable with COM Retention - Black - Angle
  • Model: ICUSB2321X
  • SKU: 1305171853
1 x Type A Female USB - 1 x DB-9 Male Serial - Black
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

$30.99
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

Startech - 4-port USB-to-RS232 Serial DB9 Adapter Hub - Silver - Angle
  • Model: ICUSB2324
  • SKU: 9734748
Compatible with devices with RS232 or USB connectivity; compatible with PC and Mac
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.

$57.99
On Sale
Save $6 (Reg. $63.99)
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

Thermaltake - Dual Bay Docking Station for Most Internal SATA Hard Drives - Angle
  • Model: ST0014U
  • SKU: 9419596
Compatible with most 2.5" and 3.5" internal SATA hard drives up to 2TB capacity; lets you connect 2 internal-type hard drives to your computer externally via USB port
$41.99
Clearance
Save $18 (Reg. $59.99)
Original Price:

The price at which Best Buy first offered this product for sale on 08/02/2009.

Intermediate markdowns may have taken place since that date.

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

Seagate - Backup Plus Desktop 8TB External USB 3.0 Hard Drive - Black - Larger Front
  • Model: STDT8000100
  • SKU: 2240085
USB 3.0 port; automatic backup; backup for mobile devices
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.

$249.99
On Sale
Save $50 (Reg. $299.99)
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

Startech - 2 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention - Black - Larger Front
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

$47.33
On Sale
Save $19 (Reg. $65.99)
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

Startech - 16 Port Rackmount FTDI USB to Serial COM Adapter Hub RS232 Multiplexer - Larger Front
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

$320.99
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

Startech - Industrial RS232 to RS422/485 Serial Port Converter with 15KV ESD Protection - Black - Black - Larger Front
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

$64.72
On Sale
Save $19 (Reg. $83.99)
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

Startech - 1 Port RS232 Serial to IP Ethernet Converter / Device Server Aluminum - Black - Black - Larger Front
  • Model: NETRS2321P
  • SKU: 1310576391
1 x Network (RJ-45) - 1 x Serial Port - Fast Ethernet - Rail-mountable, 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

$110.24
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

Dynex™ - USB to PS/2 Adapter - White - Larger Front
  • Model: DX-USBPS2
  • SKU: 7334306
Use your PS/2 compatible mouse and keyboard as USB compatible device; supports two PS/2 devices; easy to install
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.

$19.99
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

Brainboxes - Ethernet To Serial Device Server - Larger Front
  • Model: ES-551
  • SKU: 1308616894
1 x Network (RJ-45) - 1 x Serial Port - Fast Ethernet - Rail-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

$280.99
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

Brainboxes - Ethernet To Serial Device Server - Larger Front
  • Model: ES-279
  • SKU: 1305125146
1 x Network (RJ-45) - 8 x Serial Port - Fast Ethernet - Rail-mountable, 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

$455.99
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

Startech - 2-Port USB-to-RS232 Serial DB9 Adapter Cable - Black - Larger Front
  • Model: ICUSB232C2
  • SKU: 9684767
PC and Mac compatible; connects up to 2 DB9 RS232 serial devices simultaneously to your computer; plug-and-play installation
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.

$30.99
On Sale
Save $1 (Reg. $31.99)
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

SIIG - USB to Serial Hub - largeFrontView
  • Model: ID-SC0A11-S1
  • SKU: 1308979753
4 x 5-pin Female RS-422/485 Serial, 1 x 4-pin Type B Female USB 2.0 USB USB
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

$391.88
On Sale
Save $129 (Reg. $521.21)
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

Startech - 1 ft USB to Serial Adapter Cable w/ COM Retention - Larger Front
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

$23.52
On Sale
Save $4 (Reg. $27.99)
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

SIIG - Industrial Grade USB to 4-port RS-232 Serial Converter - largeFrontView
  • Model: ID-SC0G11-S1
  • SKU: 1308979852
1 x 62-pin DB-62 Female, 1 x 4-pin Type B Female USB - 1 Pack
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

$225.45
On Sale
Save $74 (Reg. $299.85)
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

Aten - 2-port USB-to-Serial RS-422/485 Hub - largeFrontView
  • Model: UC4852
  • SKU: 1308976240
2 x 9-pin DB-9 Male RS-422/485 Serial, 1 x 4-pin Type B Female USB 2.0 USB USB
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

$303.74
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

SIIG - 4-Port USB to RS-422/485 Serial Adapter - largeFrontView
  • Model: ID-SC0R11-S1
  • SKU: 1310014534
1 x 4-pin Type B Female USB 2.0 USB, 4 x 9-pin DB-9 Male RS-422/485 Serial USB - 1 Pack
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

$188.99
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

SIIG - 4-Port USB to RS-232 Serial Adapter Hub - Larger Front
  • Model: JU-SC0111-S1
  • SKU: 1308979777
1 x 4-pin Type B Female USB, 4 x 9-pin DB-9 Male RS-232 Serial USB - 1 Pack
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

$54.24
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