4 DAY SALE

Save on HDTVs, laptops, tablets and more.

Shop the sale ›


Ends Monday.

Current Offers
  • (55)
  • (100)
  • (7)
  • (1)
Brand
  • (36)
  • (26)
  • (14)
  • (6)
  • (5)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
Price
  • (103)
  • (13)
  • (9)
  • (3)
  • (3)
  • (2)
  • (4)
  • (4)
Cable Type
  • (2)
  • (1)
Color
  • (11)
  • (3)
  • (2)
Customer Reviews
  • (2)
  • (2)
  • (8)
  • (9)
  • (9)
  • (10)
Length of Cable
  • (28)
  • (27)
  • (12)
  • (8)
Collection
  • (2)
Condition
  • (141)

Networking Resources


Networking Questions

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

Sort by:
Items per page:
  • 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

Rating Breakdown

70%
(51 Reviews)
21%
(15 Reviews)
3%
(2 Reviews)
1%
(1 Review)
5%
(4 Reviews)
Value for Price:
4.4
Durability:
4.6
Ease of Use:
4.6
Compatibility:
5
  • Model: NETRS2321POE
  • SKU: 1305563429
1 x RJ-45 10/100Base-TX PoE
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

$142.40
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: ICUSB2324
  • SKU: 9734748
Compatible with devices with RS232 or USB connectivity; compatible with PC and Mac
  5.0  (2 Reviews)
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.

$62.99
On Sale
Save $1 (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

Rating Breakdown

100%
(2 Reviews)
0%
(0 Reviews)
0%
(0 Reviews)
0%
(0 Reviews)
0%
(0 Reviews)
Value for Price:
4.5
Durability:
4.5
Ease of Use:
5
Compatibility:
5
  • Model: SSE-100D
  • SKU: 1305559217
1 x DB-9 Serial, 1 x RJ-45 10/100Base-TX Network
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

$195.73
On Sale
Save $54.27 (Reg. $250)
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: CAB-232MT
  • SKU: 1307181737
Serial - 10 ft - 1 x DB-60 Male - 1 x DB-25 Male
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

$99.83
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

$57.24
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

  • 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.

$28.99
On Sale
Save $3 (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

  • Model: 17612
  • SKU: 1304814232
DB-9 Male - DB-9 Female - 100ft - Beige
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

$27.73
On Sale
Save $9.15 (Reg. $36.88)
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: 25201
  • SKU: 1304814546
DB-9 Male - DB-9 Female - 3ft - Beige
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

$6.23
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: 010-10141-00
  • SKU: 1307182086
DB-9 Female - Proprietary
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

$26.26
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: 301-1003-10
  • SKU: 1306424019
DB-9, Type A - 6.6ft
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

$114.45
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: 38538
  • SKU: 1310096103
for Projector - 6 ft - 1 x DB-9 Female Serial - 1 x Mini-DIN Male Video - 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

$17.76
On Sale
Save $5.86 (Reg. $23.62)
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: PWI-USB-RS232
  • SKU: 1309870554
USB/Serial for PDA, Cellular Phone, Modem, Label/Receipt Printer - 1 ft - 1 Pack - USB - Serial
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

$12.68
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

$45.83
On Sale
Save $20.16 (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

  • Model: ICUSB232SM3
  • SKU: 1304798020
DB-9 Male Serial - Type A Male USB - 36.02
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

$23.88
On Sale
Save $5.11 (Reg. $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

Select 2 to 4 items to Compare