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InLine 66905 Mini-PCIe Card (4 x USB 3.0)
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  • $93.99 –
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9XY73 Dell Broadcom 57414 25Gbps Dual-Port SFP28 Rack Network Daughter Card
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DELL
Refurbished 9XY73 Dell Broadcom 57414 25Gbps Dual-Port SFP28 Rack Network Daughter Card
  • Type: Network Adapter
  • Data Transfer Rate: 25Gbps
  • Part Number: 9XY73
  • Parts: 30 Days
  • Model #: 9XY73
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  • $30.00 –
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ADT-3A PCIe 5.0 x16 Height-Increasing Test Card for Motherboard Slot Protection Around 19mm Extension (R33A)
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  • $80.03 –
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  • $78.43 - $80.03
ADT-3A PCIe 5.0 x16 Height-Increasing Test Card for Motherboard Slot Protection Around 19mm Extension (R33A-FG)
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  • $80.03 –
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  • $78.43 - $80.03
ADT-3A PCIe 5.0 x16 Height-Increasing Test Card for Motherboard Slot Protection Around 19mm Extension (R83A)
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Intel Dual Band Wireless-AC 3168 3168NGW NGFF 01AX706 852511-001
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LINDY 1 Port Low Profile Parallel Card PCIe (51246)
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  • $100.99 –
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eShinreal PCIe x4 to one M.2 NVMe SSD Adapter Card without Bracket
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ADT-M43SG M.2 NVMe M Key to PCIe4.0 X16 External Bracket 64Gbps Full Speed for Graphics Card Above 1660 (M43SG-50cm)
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ADT-M43SG M.2 NVMe M Key to PCIe4.0 X16 External Bracket 64Gbps Full Speed for Graphics Card Above 1660 (M43SG-25cm)
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SlimSAS to SXM2 Single-Channel Direct Pass-Through Backplane PCIe3.0 X16 8GT/s with 2X 8pin GPU Power Support External V100 Graphics Card (Backplane)
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ADT-R33 PCIe 4.0 x16 Tx-Rx Switch Card 256Gbps High Speed (R33L)
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ADT-R33 PCIe 4.0 x16 Tx-Rx Switch Card 256Gbps High Speed (R33L)

Limited time offer, ends 10/25

  • Model #: 20260812ZP927C5JS
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SUNIX 8-Port RS-232 Serial PCI-E Card Model SER5466A
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SUNIX 8-Port RS-232 Serial PCI-E Card Model SER5466A

Limited time offer, ends 10/24

  • Specifications: Interface : RS-232 Controller: SUNIX SUN1999 (16C950 UART Compatible) Bus: PCI Express one lane (x1) No. of Port: 8-port IRQ & IO: Assigned by System FIFO: 128 byte (Hardware) Signal: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND Baud rate: 50 bps to 115.2 Kbps Data bit: 5,6,7,8 Stop bit: 1,1.5,2 Parity: None, Even, Odd, Space, Mark Flow Control: None, Xon/Xoff, RTS/CTS
  • Dimensions: 127 x 98 mm
  • Model #: SER5466A
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  • $319.96 –
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BestParts DP 2.1 Display Card 7XD14 MFF Desktop Workstation Expansion Port
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Mellanox MCX314A-BCCT Connectx-3 EN Network Adapter PCI Express 3.0 X8 56 Gigabit Ethernet
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eShinreal M.2 M key to 10G SFP+ Network Card Set Intel 82599 10Gb/s
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Dell OEM Latitude E5540 E6440 E5440 DW 1506 Wireless WiFi WLAN Card MNRG4
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PCI-E 3.0 M.2 M-key to Oculink SFF-8612 SFF-8611
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PCI-E 3.0 M.2 M-key to Oculink SFF-8612 SFF-8611

Limited time offer, ends 10/25

  • Model #: B3EW0919021
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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
Yung C.
7/27/2023 6:03:02 PM
Well made card with some frustration during installation

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

ASUS HYPER M.2 X16 Gen 4 Card, PCIe 4.0/3.0 to 4 x M.2 NVMe Slots, Up to 256 Gbps