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996 items
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Startech - 2 Port RS232/422/485 PCI Serial Adapter w/ ESD - Larger Front
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  • Model: PCI2S232485I
  • SKU: 1309422548
2 x 9-pin DB-9 Male RS-232/422/485 Serial Universal PCI
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$127.72
Startech - 1 Port PCI RS232 Serial Adapter Card - Larger Front
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$25.62
Startech - 2 Port PCI RS232 Serial Adapter Card - Larger Front
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$44.07
Startech - PSI Express-to-RS232 Serial Card Adapter - Green - Larger Front
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  • Model: PEX2S952
  • SKU: 1307711477
Fits most PCs with a PCI Express slot; adapts a PCI Express slot into 2 RS232 ports
What is Marketplace?

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$37.63
SIIG - DP 1-Port RS232 Serial PCI with 16550 UART - Larger Front
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What is Marketplace?

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$22.20
SIIG - SIIG LE2456M 2-Port RS232 Serial PCIe - Multicolor - Larger Front
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  • SKU: 1309428267


Installs in any available PCI Express slot. Two high-speed 16950 UART serial ports with 128-byte FIFO buffers to dramatically increase data transmit/receive speed under windows multitasking environment. Installs in standard height or low
What is Marketplace?

Marketplace Items

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$35.25
Startech - 8 Port Low Profile PCI Express RS232 Serial Adapter Card w/ 161050 UART - Larger Front
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What is Marketplace?

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$76.33
On Sale
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Startech - 4 Port RS232 PCI Express Serial Card w/ Breakout Cable - Larger Front
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  • Model: PEX4S553B
  • SKU: 1308970668
PCI Express x1 - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card
What is Marketplace?

Marketplace Items

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$86.64
Startech - PSI Express-to-RS232 Serial Card Adapter - Green - Larger Front
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  • Model: PEX2S952
  • SKU: 1120498
Fits most PCs with a PCI Express slot; adapts a PCI Express slot into 2 RS232 ports
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.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$38.99
SYBA Multimedia - SY-PEX-4S 4-port DB-9 Serial RS-232 PCI-e Moschip 9901 Chipset - Larger Front
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  • Model: SY-PEX-4S
  • SKU: 1310217805
2 x RS-232/422/485 Serial, 2 x 9-pin DB-9 RS-232/422/485 Serial PCI Express x1
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
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$33.52
On Sale
Save $58.47 (Reg. $91.99)
StarTech.com - 2-Port PCI Low-Profile RS-232 Serial Adapter Card with 16550 UART - Larger Front
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  • Model: PCI2S550_LP
  • SKU: 1538166
PCI interface; up to 115 Kbps data transfer rates; adds 2 RS-232 serial ports; 16-byte FIFO buffer; IRQ sharing
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.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$31.99
EVGA - NVIDIA GeForce GTX 950 2GB GDDR5 PCI Express 3.0 Graphics Card - Black - Larger Front
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  • Model: 02G-P4-2959-KB
  • SKU: 4416301
2GB GDDR5 memory; PCI Express 3.0 interface; HDMI, DisplayPort and dual-link DVI outputs; 1190MHz GPU clock speed; EVGA Precision and EVGA OC Scanner software
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.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$189.99
PNY - NVIDIA GeForce GTX 950 2GB GDDR5 PCI Express 3.0 Graphics Card - Black/Blue - Larger Front
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  • Model: VCGGTX9502XPB-OC-BB
  • SKU: 4457400
2GB GDDR5 memory; PCI Express 3.0 x16 interface; DVI-I, DVI-D, HDMI and DisplayPort outputs; 1241MHz clock speed; 6610MHz video memory clock speed; GeForce Experience software DVD
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.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$179.99
XFX - AMD Radeon R7 360 2GB GDDR5 PCI Express 3.0 Graphics Card - Black/Gray - Larger Front
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  • Model: R7-360B-CDFR
  • SKU: 8278084
2GB GDDR5 memory; PCI Express interface; HDMI, DVI-I, DVI-D and DisplayPort outputs; 1100MHz GPU clock speed; 6000MHz memory clock speed; AMD Catalyst software suite; Dirt Ralley
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.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$119.99
On Sale
Save $10 (Reg. $129.99)
PNY - GeForce GTX 960 2GB GDDR5 PCI Express 3.0 Graphics Card - Black - Larger Front
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  • Model: VCGGTX9602XPB-OC-BB
  • SKU: 9669007
2GB on-board memory; PCI Express interface; DVI-I, DVI-D, HDMI and DisplayPort outputs; 1203MHz GPU clock speed; overclocking; supports 4K Ultra HD resolution