4 DAY SALE

Save on HDTVs, laptops, tablets and more.

Shop the sale ›


Ends Monday.

Current Offers
  • (9)
  • (12)
Brand
  • (8)
  • (4)
  • (1)
  • (1)
Price
  • (14)
Wireless Standard
  • (1)
Features
  • (1)
Color
  • (5)
  • (2)
Condition
  • (14)

Networking Resources


Networking Questions

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

Sort by:
  • Model: ADD-PCI-1RJ45
  • SKU: 1310022478
PCI - 1 Port(s) - 1 x Network (RJ-45) - Twisted Pair
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

$14.73
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: PCI1S550
  • SKU: 1309165810
1 x 9-pin DB-9 Male RS-232
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

$27.17
On Sale
Save $6.82 (Reg. $33.99)
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

$23.49
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: PCI1S950DV
  • SKU: 9717599
Compatible with modems, POS devices, printers and ISDN terminal adapters; provides dual-voltage channels for connecting peripherals; easy 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.

$18.99
On Sale
Save $11 (Reg. $29.99)
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: PCI1S550_LP
  • SKU: 1308970453
1 x 9-pin DB-9 Male 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

$33.95
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: PCI1PECP
  • SKU: 9601787
Compatible with printers, scanners, Zip drives, memory card readers and CD-R/RW drives; up to 1.5 Mbps data transfer rate; easy 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.

$22.99
On Sale
Save $2 (Reg. $24.99)
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: PCI1P-LP
  • SKU: 1347987
PCI interface; up to 1.5 Mbps operating speed; supports EPP, ECP, SPP and BPP, IRQ sharing; 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.

$26.99
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: PCI1PECP
  • SKU: 1307740095
Compatible with printers, scanners, Zip drives, memory card readers and CD-R/RW drives; up to 1.5 Mbps data transfer rate; easy installation
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

$29.37
On Sale
Save $8.62 (Reg. $37.99)
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: PCI1P-LP
  • SKU: 1305187038
PCI interface; up to 1.5 Mbps operating speed; supports EPP, ECP, SPP and BPP, IRQ sharing; plug-and-play installation
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

$30.87
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

$42.54
On Sale
Save $17.45 (Reg. $59.99)
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

On Sale
(Reg. $59.99)
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: PCI1PM
  • SKU: 1308970682
1 x 25-pin DB-25 Female IEEE 1284 Parallel PCI
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

$48.02
On Sale
Save $19.97 (Reg. $67.99)
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: PCI1P2
  • SKU: 1308970705
1 x 25-pin DB-25 Female IEEE 1284 Parallel PCI
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

$25.54
On Sale
Save $6.45 (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: PCI2S1P
  • SKU: 1308970422
1 x 25-pin DB-25 Female IEEE 1284 Parallel
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

$32.65
On Sale
Save $10.34 (Reg. $42.99)
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