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ASRock THUNDERBOLT 4 AIC Add-On Card
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ASRock THUNDERBOLT 4 AIC Add-On Card
  • Type: PCI Express to Thunderbolt
  • External USB Ports: 1 x USB 2.0 Header
  • External Ports: 2 x Thunderbolt 4 Type-C Ports (with up to 40Gbps bandwidth) 1 x TBT Header 2 x DisplayPort IN Ports 1 x USB 2.0 Header
  • Internal Ports: 4 x PCI Express 3.0 interface
  • Model #: THUNDERBOLT 4 AIC
  •  
  • $288.79 
  • $29.99 Shipping
PCI-E X1 to 2 Ports 19 Pin USB 3.0 Header PCI Express to Dual 20 Pin USB 3.0 Card
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PCI-E X1 to 2 Ports 19 Pin USB 3.0 Header PCI Express to Dual 20 Pin USB 3.0 Card

Limited time offer, ends 08/31

  • Type: PCI Express to ExpressCard
  • External USB Ports: 2-port USB 3.0
  • Parts: 1 Year
  • Labor: 1 Year
  • Model #: U3056
  •  
  • $47.99 
  • Free Shipping
MSI ThunderboltM3 Add-On Card
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MSI
MSI ThunderboltM3 Add-On Card
  • Type: PCI Express to Thunderbolt
  • External Ports: 2 x Thunderbolt 3 port (type C) 1 x 5 pin TB header 2 x DisplayPort input ports
  • Specifications: Chipset: Intel Thunderbolt 3 controller Interface: PCIe 3.0 x4 Capabilities: Supports Display Port 1.2 with max. 4K x 2K @60/24 Hz Accessories: 1 x TB header cable
  • Thunderbolt 3: Yes
  • Model #: ThunderboltM3
SIIG Low Profile PCI Single Serial (16550) Port, Universal PCI Card Model LP-P10011-S6
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SIIG Low Profile PCI Single Serial (16550) Port, Universal PCI Card Model LP-P10011-S6
  • Type: PCI to Serial Port Card
  • External Ports: 1 x Serial Port
  • Data Transfer Rate: up to 230 Kbps
  • Operating Systems Supported: Windows 95/98/98SE/ME/NT 4.0/2000/XP (32-/64-bit)/Server 2003 (32-/64-bit)/Vista (32-/64-bit)
  • Model #: LP-P10011-S6
  •  
  • $34.99 
Weastlinks PCI Express to Dual 20 Pin USB 3.0 Controller Card Super Speed PCI-E X1 to 2 Ports USB 3.0 19 Pin Header With Low Profile Bracket
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Weastlinks PCI Express to Dual 20 Pin USB 3.0 Controller Card Super Speed PCI-E X1 to 2 Ports USB 3.0 19 Pin Header With Low Profile Bracket

Limited time offer, ends 08/31

  • Type: PCI Express to USB Card
  • External USB Ports: 2-port USB 3.0
  • Model #: WLU3CA002
SIIG One serial (16550) and one ECP/EPP parallel port PCI card Model LP-P11011-S6
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SIIG One serial (16550) and one ECP/EPP parallel port PCI card Model LP-P11011-S6
  • Type: PCI to Parallel / Serial Port Card
  • External Ports: 1 x Serial Port 1 x Parallel Port
  • Data Transfer Rate: Serial Port up to 230 Kbps
  • Operating Systems Supported: Windows 95/98/98SE/ME/NT4.0/2000/XP/Server 2003
  • Model #: LP-P11011-S6
  •  
  • $30.00 
BELKIN FireWire 3-Port PCI Card Model F5U501
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BELKIN FireWire 3-Port PCI Card Model F5U501
  • Type: PCI Express to 1394 Card
  • External 1394 Ports: 3x 1394 Ports
  • Data Transfer Rate: 400/200/100 Mbps
  • Operating Systems Supported: Windows 98 SE, 2000, Me, XP Mac OS 8.6 and higher
  • Model #: F5U501
  •  
  • $90.00 
eShinreal 2-Port PCIe 4.0 x8 to M.2 NVMe SSD Adapter Card PCIe Bifurcation Needed
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  •  
  • $31.50 
  • $16.00 Shipping
Vszerda Quad M.2 NVMe PCIe 4.0 x4 PCIe x16 Expansion Card NVMe M.2 up to 256Gbps for AMD 3rd Ryzen sTRX40, AM4 Socket and Intel VROC NVMe Raid, PCIe 4.0 Model (SI-PEX40162)
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Vszerda Quad M.2 NVMe PCIe 4.0 x4 PCIe x16 Expansion Card NVMe M.2 up to 256Gbps for AMD 3rd Ryzen sTRX40, AM4 Socket and Intel VROC NVMe Raid, PCIe 4.0 Model (SI-PEX40162)

Limited time offer, ends 08/29

  • Brand: IO Crest
  • Part Number: SI-PEX40162
  • Interface: pci_express_x16
  • BUS: pci_express_x16
  • Model #: SI-PEX40162A
  •  
  • $85.99 
  • Free Shipping
3 in 1 NGFF and MSATA SSD Adapter Card,M.2 NVME to PCIE/M.2 SATA SSD to SATA III/MSATA to SATA Adapter for 2280/2260 - OEM
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  •  
  • $108.99 
  • Free Shipping
SYBA 2 Port USB3.1Type-A PCI-E 3.0 x4 Model SD-PEX20185
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SYBA 2 Port USB3.1Type-A PCI-E 3.0 x4 Model SD-PEX20185
  • Type: PCI Express to USB Card
  • External USB Ports: 2x USB Ports
  • External Ports: 2 port USB 3.0
  • Operating Systems Supported: All Windows OS
  • Model #: SD-PEX20185
  •  
  • $33.68 
  • Free Shipping
OEM Dell DW1901 Atheros AR5B22 802.11a/b/g/n WIFI Bluetooth PCI-E Card K2GW5
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DELL
Refurbished OEM Dell DW1901 Atheros AR5B22 802.11a/b/g/n WIFI Bluetooth PCI-E Card K2GW5
  • Part Number: K2GW5
  • Type: PCI-E Card
  • Model #: 307-684366000202387
  •  
  • $13.99 
  • Free Shipping

Giving a computer additional capabilities requires fitting the computer with an add-on card, also called an expansion card, interface card or just plain card. Expansion controller cards have sockets that connect to conductors carrying data within the system. The connector you use depends on the card and computer. Cards provide communications interfaces, extra memory, video sound I/O capabilities, system interfaces for discs or tape backup devices and additional processors in general. Controller cards are an excellent example of an add-on card because the card acts as an interface for the motherboard, and other computer components like HDD, optical drives and keyboards. Add-on cards are suitable for use with printers and other devices in office environments.

Add-on Cards Improve Audio for Gaming, Movies and Music

Having a computer with a dynamite sound card or audio system makes gaming, watching movies and listening to music a lot more enjoyable and immersive. The sound card is an add-on card that facilitates each audio component, including multimedia applications such as music composition, presentations, audio editing and entertainment. Most PCs offer a standard sound experience, and improving the audio quality is simple with sound card accessories. Some standard accessories in the collection are USB audio interfaces, high-performance headphone amplifiers and virtual 7.1 channel surround sound systems. You can also add parallel printer cards to increase or upgrade the system.

PC Game Controllers Raise the Full Immersion Experience

Kicking your gaming to a whole new level of experience necessitates selecting a PC game controller that mirrors the gear handled in real-life situations. Some players feel comfortable using straightforward game controllers, like racing wheels or flight joysticks. Those who want the ultimate experience with full immersion in their favorite game need to consider empowering their system's performance. With the introduction of more elaborate controllers, such as VR headsets, rudder pedals, pro racing wheel stands and flight simulation, the upside is the new controllers require no new add-on cards. Plug the game controller USB cable into your system and Windows® 10 will detect it, and you are set up. Being immersed in your gaming scenario means using suitable PC game controllers. The performance will leave you feeling like you just flew a plane or raced a car like a professional, without leaving your house. As you track your statistics and see how much your game scores improve, empowering your system with quality PC controllers will prove worthwhile.

VR Accessories Possibilities Are Endless

Distinguishing the many uses of Virtual Reality (VR) accessories goes beyond gaming. Many fields in the educational and business community utilize VR accessories for vocational training, engineering and designing. The accessories begin with headsets, cables, connectors, 3D glasses, Bluetooth® remote controls and carrying cases. Some accessories come as a bundle, so you have gear and hardware upgrades like controller cards. Once the equipment is in place, you can begin gaming, training or virtual conceptualizing with high efficiency. The possibilities for you to produce and discover using the VR equipment and software are endless.

Bestselling Add-On Cards Reviews:

michael p.
7/3/2026 9:46:15 PM
Works great.

“ For those who don't know, you can put any size PCIE addon card from x1 to x16 into a PCIE x16 slot and it will work just fine. ”

EN-Labs USB C Motherboard Header PCIe Card, USB 3.2 20Pin Internal Connector PCI Express Card for Front Panel, USB 10Gbps Type-E A-Key & USB 2.0 Type-A Female Expansion Card with Full-Profile Bracket
Matthew W.
6/10/2023 7:37:42 AM
Easy way to add fast storage to Dell Precision Workstation

“ Better construction and heat distribution then the more expensive Dell add on card. ”

ASUS Hyper M.2 x16 PCIe 3.0 x4 Expansion Card V2 supports 4 NVMe M.2 (2242/2260/2280/22110) up to 128 Gbps for Intel VROC and AMD Ryzen Threadripper NVMe RAID