Computer Expansion Cards

Expand the capabilities of your computer with this wide selection of expansion cards. Whether you're looking to enhance your system's graphics, add more ports for connectivity, or boost its processing... power, we have the perfect solution for you. Browse through this range of expansion cards to take your computer to the next level and unlock its full potential for gaming, multimedia editing, or professional applications.
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Sonnet Echo Express SE IIIe Thunderbolt 3 Edition 3-Slot PCIE Card Expansion System

Sonnet Echo Express SE IIIe Thunderbolt 3 Edition 3-Slot PCIE Card Expansion System

SKU: SNEEXSE3ET3
(1)

DESCRIPTION

A compact, desktop Thunderbolt 3 to PCIe card expansion system that supports three professional PCIe cards simultaneously.

$799.99
$67 /mo suggested payments with 12‑month special financing. Learn how.
KEY FEATURES
  • Brand: sonnet

DESCRIPTION

A compact, desktop Thunderbolt 3 to PCIe card expansion system that supports three professional PCIe cards simultaneously.
StarTech PCI Express to 2 PCI & 2 PCIe Expansion Full Length Enclosure System, Includes PCI Expansion Box and PCI Express Card

StarTech PCI Express to 2 PCI & 2 PCIe Expansion Full Length Enclosure System, Includes PCI Expansion Box and PCI Express Card

SKU: STPEX2PCIE4L
(3)

DESCRIPTION

A PCI Express to 2 PCI & 2 PCIe Expansion Full Length Enclosure System for maximizing I/O capabilities.

$567.99
$95 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: startech

DESCRIPTION

A PCI Express to 2 PCI & 2 PCIe Expansion Full Length Enclosure System for maximizing I/O capabilities.
Sonnet Echo Express SE I 1-Slot Thunderbolt 3 to Full-Height/Half-Length PCIe Card Expansion System

Sonnet Echo Express SE I 1-Slot Thunderbolt 3 to Full-Height/Half-Length PCIe Card Expansion System

SKU: SNEEXPSE1T3
(4)

DESCRIPTION

A Compact and lightweight Thunderbolt 3 expansion system that connects a PCIe card to computers without slots.

$369.99
$62 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: sonnet

DESCRIPTION

A Compact and lightweight Thunderbolt 3 expansion system that connects a PCIe card to computers without slots.
Synology E10G18-T1 Single-Port, High-Speed 10GBASE-T/NBASE-T PCIe Expansion Card

Synology E10G18-T1 Single-Port, High-Speed 10GBASE-T/NBASE-T PCIe Expansion Card

SKU: SYE10G18T1
(3)

DESCRIPTION

A flexible and cost-effective PCIe expansion card for smooth migration to 10GbE networking with backward compatibility.

$139.99
KEY FEATURES
  • Brand: synology

DESCRIPTION

A flexible and cost-effective PCIe expansion card for smooth migration to 10GbE networking with backward compatibility.
Behringer X-LIVE 32-Channel SD Recording/Playback & USB Expansion Card for X32 Mixing Console

Behringer X-LIVE 32-Channel SD Recording/Playback & USB Expansion Card for X32 Mixing Console

SKU: BEXLIVE
(5)

DESCRIPTION

A powerful expansion card for the X32 mixing console, allowing for multi-channel recording and playback via USB and dual SD/SDHC slots.

$142.50
$169.00 Save: $26.50 (16%)
KEY FEATURES
  • Brand: behringer

DESCRIPTION

A powerful expansion card for the X32 mixing console, allowing for multi-channel recording and playback via USB and dual SD/SDHC slots.
StarTech 1 Port eSATA + 1 Port SATA PCI SATA Controller Card with LP Bracket

StarTech 1 Port eSATA + 1 Port SATA PCI SATA Controller Card with LP Bracket

SKU: STPCIESATA2I
(55)

DESCRIPTION

A PCI based SATA Controller Card with 1 internal SATA port and 1 external eSATA port for flexible SATA expansion.

$33.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A PCI based SATA Controller Card with 1 internal SATA port and 1 external eSATA port for flexible SATA expansion.
StarTech 7.1 USB Audio Adapter External Sound Card with SPDIF Digital Audio, Silver

StarTech 7.1 USB Audio Adapter External Sound Card with SPDIF Digital Audio, Silver

SKU: STUSBAUDIO7D
(53)

DESCRIPTION

A compact and portable silver external sound card with 7.1 audio output and optical S/PDIF connectivity.

Pros
  • Excellent customer service
  • Great sound quality
  • Improved audio performance
  • Compatibility with various devices
  • Easy installation and setup
$50.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A compact and portable silver external sound card with 7.1 audio output and optical S/PDIF connectivity.
StarTech PCI Express to PCI Adapter Card

StarTech PCI Express to PCI Adapter Card

SKU: STPEX1PCI1
(44)

DESCRIPTION

A PCI Express to PCI Adapter Card that allows you to use low profile PCI expansion cards in a PCIe slot.

Pros
  • Compatibility with old PCI cards
  • Works well
  • Flawless performance
  • Helpful for installing older PCI devices
  • Well made
$65.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A PCI Express to PCI Adapter Card that allows you to use low profile PCI expansion cards in a PCIe slot.
StarTech 1 Port PCI Parallel Adapter Card

StarTech 1 Port PCI Parallel Adapter Card

SKU: STPCI1PECP
(44)

DESCRIPTION

A high-performance PCI parallel adapter card that adds one IEEE 1284 parallel port to your PC, supporting various communication modes.

$37.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A high-performance PCI parallel adapter card that adds one IEEE 1284 parallel port to your PC, supporting various communication modes.
Blackmagic Design DeckLink Duo 2

Blackmagic Design DeckLink Duo 2

SKU: BMDDUO2
(14)

DESCRIPTION

A high-performance capture and playback solution with 4 independent 3G-SDI connections, configurable inputs/outputs, and broad software compatibility.

$545.00
$91 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: blackmagic design

DESCRIPTION

A high-performance capture and playback solution with 4 independent 3G-SDI connections, configurable inputs/outputs, and broad software compatibility.
StarTech 4-Port PCI Express USB 3.0 Card with 3 External and 1 Internal Ports

StarTech 4-Port PCI Express USB 3.0 Card with 3 External and 1 Internal Ports

SKU: STPEXUSB3S42
(13)

DESCRIPTION

A 4-port PCIe USB 3.0 card with 3 external and 1 internal port, providing fast data transfer rates and UASP support.

$45.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A 4-port PCIe USB 3.0 card with 3 external and 1 internal port, providing fast data transfer rates and UASP support.
StarTech 4 Port PCI Express Low Profile High Speed USB Card

StarTech 4 Port PCI Express Low Profile High Speed USB Card

SKU: STPEXUSB4DP
(13)

DESCRIPTION

A low profile 4 port USB card that adds USB 2.0 connectivity to any PCIe based desktop, workstation or server.

$48.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A low profile 4 port USB card that adds USB 2.0 connectivity to any PCIe based desktop, workstation or server.
Sonnet Allegro USB 3.0 4-Port PCIe Card

Sonnet Allegro USB 3.0 4-Port PCIe Card

SKU: SNTUSB34PME
(8)

DESCRIPTION

A powerful USB 3.0 4-Port PCIe card that adds high-speed, bus-powered USB connections to your computer.

$54.99
KEY FEATURES
  • Brand: sonnet

DESCRIPTION

A powerful USB 3.0 4-Port PCIe card that adds high-speed, bus-powered USB connections to your computer.
Sonnet Allegro Dual-Port 10Gbs USB-C (USB 3.1 Gen 2) PCIe Adapter Card with 15W Power Per Port

Sonnet Allegro Dual-Port 10Gbs USB-C (USB 3.1 Gen 2) PCIe Adapter Card with 15W Power Per Port

SKU: SNUSB3C2PME
(8)

DESCRIPTION

A SuperSpeed+ USB-C PCIe adapter card that adds two 10Gbps USB-C ports with 15W power per port.

$87.99
KEY FEATURES
  • Brand: sonnet

DESCRIPTION

A SuperSpeed+ USB-C PCIe adapter card that adds two 10Gbps USB-C ports with 15W power per port.
StarTech 4 Port RS232 Mini PCI Express Serial Card with 16650 UART, Green

StarTech 4 Port RS232 Mini PCI Express Serial Card with 16650 UART, Green

SKU: STMPEX4S552
(5)

DESCRIPTION

A cost-saving solution for adding four high-speed RS232 serial ports to embedded systems, with improved speed and reliability.

$117.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A cost-saving solution for adding four high-speed RS232 serial ports to embedded systems, with improved speed and reliability.
StarTech 1S1P Native PCI Express Parallel Serial Combo Card with 16950 UART

StarTech 1S1P Native PCI Express Parallel Serial Combo Card with 16950 UART

SKU: STPEX1S1P952
(5)

DESCRIPTION

A Native PCI Express card with 1 RS232 serial and 1 IEEE 1284 parallel port, featuring a single chip design for improved performance.

$64.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A Native PCI Express card with 1 RS232 serial and 1 IEEE 1284 parallel port, featuring a single chip design for improved performance.
StarTech 2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

StarTech 2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

SKU: STPEX2S5531P
(5)

DESCRIPTION

A PCI Express card that converts a slot into two RS232 serial ports and one parallel port, with high-speed data transfer rates and compatibility with various operating systems.

$49.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A PCI Express card that converts a slot into two RS232 serial ports and one parallel port, with high-speed data transfer rates and compatibility with various operating systems.
StarTech 1 Port PCI Express Dual Profile Parallel Adapter Card

StarTech 1 Port PCI Express Dual Profile Parallel Adapter Card

SKU: STPEX1P
(4)

DESCRIPTION

A high-performance PCIe parallel adapter card with SPP/EPP/ECP support for connecting printers and scanners.

Pros
  • Good quality
  • No defects
  • Good card
  • Easy installation
  • Continued support
$35.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A high-performance PCIe parallel adapter card with SPP/EPP/ECP support for connecting printers and scanners.
StarTech PCI Express to 4 Slot PCI Expansion System, Includes PCI Expansion Box and PCI Express Card

StarTech PCI Express to 4 Slot PCI Expansion System, Includes PCI Expansion Box and PCI Express Card

SKU: STPEX2PCI4
(3)

DESCRIPTION

A cost-effective and time-saving solution to expand I/O capabilities by adding 4 external PCI slots to a PCIe enabled system.

$469.99
$79 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: startech

DESCRIPTION

A cost-effective and time-saving solution to expand I/O capabilities by adding 4 external PCI slots to a PCIe enabled system.
Sonnet Allegro USB-C 4-Port USB 3.1 Gen 2 PCIe Card with Dual 10Gb Controllers, Thunderbolt Compatible

Sonnet Allegro USB-C 4-Port USB 3.1 Gen 2 PCIe Card with Dual 10Gb Controllers, Thunderbolt Compatible

SKU: SNUSB3C4PME
(3)

DESCRIPTION

A high-performance USB-C 4-port PCIe card with dual 10Gb controllers and Thunderbolt compatibility.

$153.99
KEY FEATURES
  • Brand: sonnet

DESCRIPTION

A high-performance USB-C 4-port PCIe card with dual 10Gb controllers and Thunderbolt compatibility.
INOGENI HDMI to USB 3.0 Video Capture Card, 4K Video Resolution Support

INOGENI HDMI to USB 3.0 Video Capture Card, 4K Video Resolution Support

SKU: IG4K2USB3
(3)

DESCRIPTION

A compact and reliable HDMI to USB 3.0 converter for capturing uncompressed video with audio up to 4K resolution.

$475.00
$80 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: inogeni

DESCRIPTION

A compact and reliable HDMI to USB 3.0 converter for capturing uncompressed video with audio up to 4K resolution.
StarTech 4-Port Intel I350 Gigabit Ethernet Network Card

StarTech 4-Port Intel I350 Gigabit Ethernet Network Card

SKU: ST4000SPEXI
(2)

DESCRIPTION

A cost-effective way to add four high-performance Gigabit Ethernet ports to your server or desktop computer.

$212.99
$36 /mo suggested payments with 6‑month special financing. Learn how.
KEY FEATURES
  • Brand: startech

DESCRIPTION

A cost-effective way to add four high-performance Gigabit Ethernet ports to your server or desktop computer.
StarTech PCIe 1080p Video Capture Card for HDMI, DVI,VGA and Component Singles

StarTech PCIe 1080p Video Capture Card for HDMI, DVI,VGA and Component Singles

SKU: STPEXHDCAP2
(2)

DESCRIPTION

A PCIe capture card with HDMI, DVI, VGA, and component inputs for recording 1080p HD video and stereo audio.

$181.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A PCIe capture card with HDMI, DVI, VGA, and component inputs for recording 1080p HD video and stereo audio.
StarTech 2 Port IEEE 1284 PCI Express/PCI-e Parallel Adapter Card

StarTech 2 Port IEEE 1284 PCI Express/PCI-e Parallel Adapter Card

SKU: STPEX2PECP2
(2)

DESCRIPTION

A high-performance 2 port PCI Express parallel adapter card with support for various parallel data communication modes.

$81.99
KEY FEATURES
  • Brand: startech

DESCRIPTION

A high-performance 2 port PCI Express parallel adapter card with support for various parallel data communication modes.
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Computer Expansion Cards

In the ever-evolving landscape of technology, the right tools can transform an ordinary computer setup into a powerhouse of performance and productivity. Computer expansion cards are pivotal components that serve this very purpose, enhancing the capabilities of computers to meet specific needs, whether for professional applications, creative endeavors, or gaming. These cards, which plug into the slots on a motherboard, extend the functionality of a system by adding new features that weren’t originally built into the base machine. They come in various forms, including graphics cards, network cards, sound cards, and storage controllers, each serving distinct functions that cater to different user requirements.

For professionals in fields such as video editing, graphic design, and data science, the importance of robust graphics and processing power cannot be overstated. A high-quality expansion card can drastically improve the rendering time of complex projects and enable the handling of larger files and more demanding software with ease. Similarly, in the realm of gaming, where every millisecond counts, the right expansion card can enhance the gaming experience with smoother frame rates and better graphics, making the difference between victory and defeat in fast-paced environments. As we embrace the warmer months, where longer days might translate to extended gaming sessions or creative projects, ensuring your system can handle increased use is crucial. For those looking to gift something truly impactful, especially with graduations and the gifting season around the corner, a thoughtful selection from the range of computer expansion cards can be a game-changer, empowering your loved ones to dive deeper into their hobbies or professional tasks with renewed vigor.

Understanding the specifications and compatibility of expansion cards with your existing system is crucial. Factors such as the type of slot on your motherboard (PCI, AGP, PCIe), the physical size of the card, power supply requirements, and how it interacts with other components, are all vital considerations. It’s also important to think about the future-proofing aspect of any upgrade. As software and technology requirements advance, choosing a card that not only meets current needs but also has headroom for upcoming software releases can be a wise investment. For those particularly interested in exploring a variety of PCI-based cards, which are widely used and known for their compatibility and performance, visiting a dedicated resource like Pci Cards can provide deeper insights and options. Whether you're upgrading an existing system or building a new one from scratch, the addition of the right computer expansion cards can significantly enhance the machine’s performance, tailored to your specific needs and aspirations. This thoughtful approach not only ensures an immediate boost in productivity and enjoyment but also extends the longevity and relevance of your computer in this fast-paced digital age.