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ASUS Thunderboltex 3 Thunderbolt/Usb Adapter, PCI Express to USB Card, 	1 x 9 pin TB header, 40Gbps transfer speed
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ASUS
ASUS Thunderboltex 3 Thunderbolt/Usb Adapter, PCI Express to USB Card, 1 x 9 pin TB header, 40Gbps transfer speed
  • Type: PCI Express to USB Card
  • External Ports: 1 x 9 pin TB header
  • Internal Ports: PCI Express 3.0 x4 (compatible with PCI Express x16/x8/x4 slots)
  • Operating Systems Supported: Windows 10 Windows 8.1 64-bit Windows 8 64-bit Windows 7 32-bit Windows 7 64-bit
  • Model #: B-ASUS ThunderboltEX 3
eShinreal SFF-8643 8i to PCIe 3.0 x16 Slot Adapter
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eShinreal SFF-8643 8i to PCIe 3.0 x16 Slot Adapter
  • Type: Controller Card
  • Model #: XIC 338PE
ESTONE PCIE USB 3.0 Card 4 Ports PCI Expree to USB Expansion Card Super Speed 5Gbps PCI-e USB3 Hub Controller Adapter for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs
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ESTONE PCIE USB 3.0 Card 4 Ports PCI Expree to USB Expansion Card Super Speed 5Gbps PCI-e USB3 Hub Controller Adapter for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs

Limited time offer, ends 05/23

  • Type: PCI to USB Card
  • External USB Ports: 4-port USB 3.0
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: E-PCIE24ABK-1
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  • $21.99 
  • Free Shipping
StarTech.com U.2 to PCIe Adapter for 2.5" U.2 NVMe SSD - x4 PCI Express 3.0 Model PEX4SFF8639
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StarTech.com U.2 to PCIe Adapter for 2.5" U.2 NVMe SSD - x4 PCI Express 3.0 Model PEX4SFF8639
  • Type: U.2 to PCIe Adapter - x4 PCIe
  • Specifications: Bus Type: PCI Express Compatible Drive Types: U.2 (SFF-8639, x4 PCIe, NVMe) Drive Installation: Fixed Drive Size: 2.5in Interface : PCI Express Number of Drives: 1 Supported Drive Height(s): 15mm 12.5mm 9.5mm 7mm 5mm
  • Dimensions: 0.90" x 6.50" x 4.80"
  • Weight: 0.14 lbs.
  • Model #: PEX4SFF8639
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  • $49.99 
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Vantec 5-Port USB 3.2 Gen2x2 (Total 20Gbps) with 2C and 3A PCIe Host Card (UGT-PC3A2C), Full Height
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Vantec 5-Port USB 3.2 Gen2x2 (Total 20Gbps) with 2C and 3A PCIe Host Card (UGT-PC3A2C), Full Height
  • Brand: VANTEC
  • Type: pci
  • Compatibility: Personal Computer, Laptop, USB 3.2 Gen2x2 devices, USB 3.1 devices, USB 3.0 devices, USB 2.0 devices, USB 1.1 devices
  • Part Number: UGT-PC3A2C
  • Model #: UGT-PC3A2C
  • $60.55 - $74.14
SYBA PCI 32-Bit, 10/100/1000 Gigabit Network Card SY-VIA-GA
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  • $16.99 
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wireless N 6235 300M wifi bluetooth BT 4.0  Card for Intel Lenovo IBM 04w3777
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  • $24.99 
  • Free Shipping
LetLinkSo PCIe 5.0 M.2 SSD Expansion Card for 4 NVME M.2 SSD M Key 2280 2260 2242
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LetLinkSo PCIe 5.0 M.2 SSD Expansion Card for 4 NVME M.2 SSD M Key 2280 2260 2242
  • Brand: LetLinkSo
  • Series: PCIe M.2 Expansion Adapter
  • Type: PCIe M.2 Expansion Card
  • Standard: PCIe 4.0
  • Model #: B0DCZZRBV6
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  • $74.99 
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M.2 NVME Adapter M.2 SSD to PCIE 3.0 X1 Expansion Card Converter Riser Card M Key Connector for M2 NGFF NVMe SSD hard drive
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  • $19.87 
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USB C 20Gbps PCIe 3.0 Card,PCI Express x4 to USB 3.2 Gen2X2 Type-C Expansion Card with Full-Profile & Low-Profile Bracket,USB 3.2 20Gb/s to PCIe Add On Card Adapter - SATA Powered
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  • $40.49 
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M.2 NVMe to PCIe Adapter, RIITOP NVMe to PCIe x4 x8 x16 Adapter Card Converter, Compatible with M-Key M.2 NVMe SSD 2280/2260/2242/2230 mm
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M.2 NVMe to PCIe Adapter, RIITOP NVMe to PCIe x4 x8 x16 Adapter Card Converter, Compatible with M-Key M.2 NVMe SSD 2280/2260/2242/2230 mm

Limited time offer, ends 05/11

  • Type: Controller Card
  • External USB Ports: PCI Express
  • Compatibility: Supports 2280/2260/2242/2230mm M-Key M.2 NVMe SSD
  • Specifications: Compatible with: Apply to 2280/2260/2242/2230mm M.2 PCI-e NVMe SSD. Not supported SATA-based M.2 SSD. Compatibility with PCIe NVMe SSD (Incomplete List): Samsung XP941, SM951 (NVMe), 950 Pro Series SSDs, PM961, 960EVO, SM961, PM951, 960EVO. INTEL 600P. Liteon T10. Kingston HyperX Predator M.2. Plextor M6e Series M.2 SSD.
  • Model #: NVTPCE16XB
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  • $13.99 
  • Free Shipping
  • $6.00 - $13.99
20Gbps PCIe USB C Card - RIITOP USB 3.2 Gen 2x2 (20Gbps) USB-C SuperSpeed PCI Express 3.0 x4 Host Controller Card - USB Type-C PCIe Add-On Adapter Card - Expansion Card, For Windows & Linux
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  • $37.99 
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  • $35.50 - $37.99
ESTONE PCIE USB 3.2 Gen 2 Card 8 Ports(4X USB C - 4X USB A), PCI Expree to USB Expansion Card Super Speed 10Gbps PCI-e USB3.2 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista
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ESTONE PCIE USB 3.2 Gen 2 Card 8 Ports(4X USB C - 4X USB A), PCI Expree to USB Expansion Card Super Speed 10Gbps PCI-e USB3.2 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista

Limited time offer, ends 05/23

  • Type: PCI to USB Card
  • External USB Ports: 8x USB Ports
  • Standard: USB 3.2
  • Data Transfer Rate: Up to 10 Gbps
  • Model #: E-PCIE24A4C3.2-1
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  • $61.99 
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Silverstone Add-On Card Model SST-ECU04-E
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Silverstone Add-On Card Model SST-ECU04-E
  • Type: Low profile - PCI-E 2.0 x2 (10Gbps)
  • Internal USB Ports: 2 x 19pin USB 3.1 ports
  • Standard: USB 3.1
  • Data Transfer Rate: Up to 10Gbps
  • Model #: SST-ECU04-E
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  • $55.99 
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PCIe 1 to 4 Riser Card, Pcie Splitter 1 to 4 PCI Riser Card, 4 Risers into 1 PCI Card, PCIe Risers 1X to External 4 PCI-e USB 3.0 Adapter Multiplier for Bitcoin Miner Device
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  • $23.99 
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PCI-E to USB 3.0 7-Port(7X USB-A) Expansion Card,PCI Express USB Add in Card, Internal USB3.0 Hub Converter for Desktop PC Host Card Support Windows 10/8/7/XP and MAC OS 10.8.2 Above
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PCI-E to USB 3.0 7-Port(7X USB-A) Expansion Card,PCI Express USB Add in Card, Internal USB3.0 Hub Converter for Desktop PC Host Card Support Windows 10/8/7/XP and MAC OS 10.8.2 Above

Limited time offer, ends 05/23

  • Type: PCI to USB Card
  • External USB Ports: 7-Port USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Operating Systems Supported: Windows 7/8/10/11
  • Model #: E-PCIE27USBA-7
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  • $29.99 
  • Free Shipping
StarTech.com PCI to PCI Express Adapter Card Model PCI1PEX1
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StarTech.com PCI to PCI Express Adapter Card Model PCI1PEX1
  • Type: PCI to PCI Express
  • Operating Systems Supported: Windows 2000/ XP(32/64bit)/ Server 2003(32/64bit)/ Vista(32/64bit)/ 7(32/64bit)/ Server 2008 R2, and Linux
  • Weight: 20
  • Parts: 2 Year
  • Model #: PCI1PEX1
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  • $54.99 
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StarTech.com PEXUSB3S4V 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card
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StarTech.com PEXUSB3S4V 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card
  • Type: PCI Express to USB Card
  • Internal Ports: 1 x SATA
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: PEXUSB3S4V
  • $63.99
  •  
  • $52.99 
  • Save: 17%
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SYBA PCI-Express 1-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15021
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SYBA PCI-Express 1-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15021
  • Type: PCI Express to Serial Port Card
  • External Ports: 1 x Serial Port
  • Operating Systems Supported: Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
  • Weight: 1
  • Model #: SD-PEX15021
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  • $19.99 
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3 Pack 6-Pins PCI-e VER 006C PCl-E 16x to 1x Powered Riser Adapter Card with 2ft USB 3.0 Extension Cable &  SATA to PCIe 6pin Power Cable GPU Riser Adapter Ethereum Mining ETH
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3 Pack 6-Pins PCI-e VER 006C PCl-E 16x to 1x Powered Riser Adapter Card with 2ft USB 3.0 Extension Cable & SATA to PCIe 6pin Power Cable GPU Riser Adapter Ethereum Mining ETH

Limited time offer, ends 05/30

  • Type: Riser Card
  • External USB Ports: 3x USB Ports
  • Specifications: ----Board size: approx.12.8cm x 4.2cm x 1.0cm/5.03" x 1.65" x 0.39"----4x 270uF FP solid capacitors
  • Model #: 311009V6C
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  • $30.89 
  • Free Shipping
ESTONE PCIE USB 3.0 Card 5 Ports(3X USB C - 2X USB A), PCI Express to USB Expansion Card Super Speed 5Gbps PCI-e USB3.0 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista
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ESTONE PCIE USB 3.0 Card 5 Ports(3X USB C - 2X USB A), PCI Express to USB Expansion Card Super Speed 5Gbps PCI-e USB3.0 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista

Limited time offer, ends 05/23

  • Type: PCI to USB Card
  • External USB Ports: 5x USB Ports
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: E-PCIE22A3C-1
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  • $23.99 
  • Free Shipping
USB 3.2 Gen 2 (10 Gbps) 1-Port Type-C M.2 22x60 B+M key Controller Card
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USB 3.2 Gen 2 (10 Gbps) 1-Port Type-C M.2 22x60 B+M key Controller Card
  • Type: PCI Express to M.2 Card
  • Internal USB Ports: 1x USB Port
  • Parts: 3 Years
  • Labor: 3 Years
  • Model #: SY-ADA20232
PCIe to USB 3.0 4X USB-APorts Expansion Card,PCI Express Internal USB 3 Hub Converter for Desktop PCS Riser Card
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  • $23.90 
  • Free Shipping
StarTech PEXUSB3S42V 4 Port Dual Bus PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA/LP4 Power
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StarTech PEXUSB3S42V 4 Port Dual Bus PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA/LP4 Power
  • Type: PCI Express
  • Specifications: Industry Standards: - USB 3.0 Specification Rev. 1.0 - USB Battery Charging Specification Rev. 1.2 (Apple Mode only) - PCI Express Base Specification Rev. 2.0 - Intel xHCI Specification Rev. 1.0 Interface: USB 3.0 Connector Type(s): 1 - PCI Express x4 Male External Ports: 4 - USB 3.0 A (9 pin; SuperSpeed) Female Internal Ports: - 1 - LP4 (4 pin; Molex Large Drive Power) Female - 1 - SATA Power (15 pin) Plug Maximum Cable Length: 9.8 ft [3 m] Maximum Data Transfer Rate: 5Gbps per 2 ports - 10Gbps Total Type and Rate: USB 3.0 - 5 Gbit/s UASP Support: Yes
  • Dimensions: 0.59" x 2.17" x 6.57" (W x H x L)
  • Weight: 0.13lb
  • Model #: PEXUSB3S42V
  • $94.99
  •  
  • $84.99 
  • Save: 10%
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JAENFONG  Oculink to PCIe 4.0 X16 Adapter 2 Port SFF-8611/8612 8i to PCI Express Expansion Card Adapter with 8cm/12cm Slot Bracket
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  • $60.62
  •  
  • $59.80 
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SYBA USB 3.0 4-port PCI-Express x1 Controller Card, VLI VL80x Chip Model SD-PEX20133
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SYBA USB 3.0 4-port PCI-Express x1 Controller Card, VLI VL80x Chip Model SD-PEX20133
  • Type: PCI Express to USB Card
  • External USB Ports: 4x USB Ports
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: SD-PEX20133
  • $31.99
  •  
  • $20.99 
  • Save: 34%
  • 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:

Jason
9/20/2025 5:16:14 PM
Not bad at all

“ Recommended sure. If I had a add farm this is a great value and it's not bad looking. ”

Quad M.2 NVMe to PCIe 16x Adapter, RIITOP 4 Port NVMe SSD Slot Converter to PCI-e 4.0 x16 Host Controller Expansion Card Adaptor High Speed 4x32Gbps For M Key NVMe SSD (PCI-e Bifurcation Required)
Anonymous
2/26/2025 2:59:28 PM
Too easy

“ This card is a great way to add a USB 3.0 interface to older PC's whose motherboard only supplies USB 2.0. ”

USB C PCIe Card,PCI-Express 4X to Type C USB 3.2 Gen 2 (10 Gbps) 2-Ports Expansion Card with Asmedia Chipset ASM3142 (Dual Type C) for Windows 7/8/10/Linux/MAC OS - Full & Low Profile Slot Bracket
Anonymous
11/11/2023 7:00:07 PM
Plug it in and it works. Just what I wanted.

“ Simple USB3.0 Add-on Card with 19/20 pin header. ”

4 Port PCIE PCI-e to USB 3.0 (2 x Type A+ 20 Pin Internal) Expansion Card Hub Controller PCI Express Card Adapter w/ Molex Power
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