- Home
- Computer Peripherals
- Gaming & Streaming Gear
- Add-On Cards
Add-On Cards
- In Stock
- Sold by Newegg
- Make an Offer
- New
- Brands
- Show More
- Price
- Show More
- Type
- Show More
- External USB Ports
- Show More
- Thunderbolt 3
- External 1394 Ports
- Sold by
- All Top Brands
- Availability
- Condition
- Current Promotion
- Discount
- Useful Links
- Show More
- Customer Ratings
- & up
SHOP BY Type

- Type: Mini PCI Express to USB Card
- External USB Ports: 4-port USB 3.0
- Internal USB Ports: 4x USB Ports
- Dimensions: 4.7*4.48*0.86 inch
- Model #: KC005A
- $25.99 –
- Free Shipping
- $14.39 - $25.99

- Type: PCI Express to USB Card
- External USB Ports: USB Type-C (24 pin, Gen 2x2, 20Gbps)
- Standard: USB 3.2 Specification Rev. 1.0 PCI Express Base Specification Rev. 3.0 Intel xHCI Specification Rev. 1.1 UASP (USB Attached SCSI Protocol) Rev. 1.0
- Data Transfer Rate: 20Gbps
- Model #: PEXUSB321C
- $67.99
- $57.99 –
- Save: 14%
- More options from $57.99 - $74.30
- $6.81 Shipping

- Type: PCIe Card with Serial and Parallel Port
- External Ports: DB-25 (25 pin, D-Sub) DB-9 (9 pin, D-Sub)
- Standard: PCI Express x1
- Model #: PEX1S1P950
- $64.99
- $47.99 –
- Save: 26%
- More options from $47.99 - $63.64
- $7.02 Shipping

Limited time offer, ends 09/18
- Type: Controller Card
- Model #: 4NV-PCE16X
- $26.99 –
- Free Shipping
- $25.00 - $26.99

Limited time offer, ends 09/18
- Type: Controller Card
- Model #: PCETE20P
- $21.99 –
- Free Shipping
- $20.00 - $21.99

Limited time offer, ends 09/18
- Type: USB3.0 expansion card
- Model #: PCET7U3-N
- $27.99 –
- Free Shipping
- $25.50 - $27.99

Limited time offer, ends 09/18
- Model #: 4P-NVTPCE50HN
- $59.99 –
- Free Shipping
- $59.50 - $59.99

Limited time offer, ends 09/30
- Type: no
- Package Contents: 12CM Case fan,screws bag
- Model #: 11-001-366
- $40.99 –
- Free Shipping

- Type: Controller Card
- Model #: CL-Wificard3-142
- $11.99 –
- Free Shipping

Limited time offer, ends 09/30
- Model #: 11-001-156
- $29.99 –
- Free Shipping
- $26.56 - $29.99

- Type: PCI Express to USB Card
- External USB Ports: 3x USB Ports
- Internal USB Ports: 1x USB Port
- Internal Ports: 1 Molex Power Feed Connector
- Model #: SD-PEX20137
- $19.99 –
- Free Shipping

Limited time offer, ends 09/18
- Model #: NV2SF-MU
- $19.99 –
- Free Shipping
- $19.00 - $19.99

- 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
- $89.47 –
- More options from $89.47 - $90.99
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 2 x USB Type-C (24 pin) USB 3.1 (10Gbps) Female
- Internal Ports: 1 x SATA Power (15 pin) Plug
- Standard: USB 3.1 Gen 2
- Model #: PEXUSB312C3
- $67.64
- $62.81 –
- Save: 7%
- More options from $61.93 - $69.58
- Free Shipping

Limited time offer, ends 09/30
- Model #: 11-001-358
- $47.59 –
- Free Shipping

- Type: USB 3.2 (10 Gbps) PCIe Card
- External USB Ports: 2 x USB 3.2 Gen 2x1 USB Type-A (9 pin, 10 Gbps) 1 x USB 3.2 Gen 2x1 USB Type-C (24 pin, 10 Gbps)
- Internal Ports: 1 x IDC (20 pin, USB 3.0, Motherboard Header) 1 x SATA Power (15 pin)
- Standard: Industry Standards: PCI Express Base Specification Rev. 3.0 USB 3.2 Specifications UASP (USB Attached SCSI Protocol) Rev. 1.0
- Model #: PEXUSB312A1C1H
- $84.34
- $75.62 –
- Save: 10%
- More options from $61.99 - $87.22

- Type: PCI Express to Serial Port Card
- External Ports: 1 x DB25 Parallel Printer (LPT1)
- Operating Systems Supported: Windows 7, 8, 10, Linux Kernel 2.6.15 and later Android 1.x-5.x
- Specifications: The Syba SI-PEX10011 PCI express Parallel Card with Asix AX99100 Chipset turns a PCI express slot into a parallel port. Works with old software that requires re-mapping to legacy address. Designed around the well known Serial/Parallel I/O power house Asix chipset. Parallel ports are ideal for connecting to modem, cellular phone, PDA, ISDN terminal adapter, satellite receiver, graphic tablet, bar code scanner, label printer, automated teller machine, GPS, finger print identification, Infra-Red transceiver, packet radio, magnetic card reader, Pops devices, multi-modem dial-up server, digital camera, automation interface, and card reader. Keeps old S...
- Model #: SI-PEX10011
- $16.99 –
- More options from $16.99
- Free Shipping

- Type: PCI to USB Card
- External USB Ports: 3 x USB A Female
- Internal USB Ports: 1 x USB A Female
- Standard: USB 2.0
- Model #: PEXUSB4DP
- $45.99 –
- Free Shipping

- $84.00 –
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 2x USB Ports
- Internal USB Ports: 2x USB Ports
- Standard: USB 3.0
- Model #: UGT-PC345
- $29.49 –
- More options from $29.49 - $50.69
- Free Shipping

Limited time offer, ends 09/30
- Model #: 11-001-265
- $54.29 –
- Free Shipping

Limited time offer, ends 09/19
- Model #: C6WV-0731-OYJ-140
- $31.13 –
- Free Shipping

- Type: Thunderbolt 3 to PCIe x16 and DisplayPort
- External Ports: 2 x Thunderbolt 3 USB-C (24-pin) Female 1 x DisplayPort (20 pin) Female
- Internal Ports: 1 x PCI Express x16 Female
- Data Transfer Rate: Up to 40 Gbps (Thunderbolt 3)
- Model #: TB31PCIEX16
- $316.99 –
- More options from $316.99 - $323.86
- Free Shipping

- Model #: EP-025-JM
- $11.88 –
- Free Shipping

Limited time offer, ends 09/30
- Type: Controller Card
- Model #: 11-001-244
- $24.59 –
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 2 x USB 3.2 USB Type-A (9 pin, Gen 2, 10 Gbps)
- Internal Ports: 1 x SATA Power (15 pin)
- Standard: USB 3.2 Specification PCI Express Base Specification Rev. 3.0 Intel xHCI Specification Rev. 1.1 UASP (USB Attached SCSI Protocol) Rev. 1.0
- Model #: PEXUSB312A3
- $47.99
- $44.99 –
- Save: 6%
- More options from $44.99 - $57.65
- $7.02 Shipping

- Type: PCI Express to SATA Card
- Internal Ports: 5 x SATA III 6 Gb/s
- Data Transfer Rate: Up to 1700 MB/s
- Model #: SI-PEX40139
- $49.99
- $25.99 –
- Save: 48%
- More options from $25.99 - $38.60
- Free Shipping

- Type: 12VHPWR PCI-e 5.0 16Pin (12+4) to Triple 8-Pin GPU
- Model #: F04-303BK
- $24.99 –
- $6.99 Shipping

- Brand: StarTech.com
- Type: USB CardBus
- Part Number: P10Q4C-USB-CARD
- Package Contents: USB Adapter 1 x Low-Profile Bracket 1 x Quick-Start Guide
- Model #: P10Q4C-USB-CARD
- $269.66 –
- More options from $269.66 - $308.61
- Free Shipping

- Type: PCI Express to USB Card
- Model #: PS4C3IA3-USB-C-CARD
- $85.15 –
- More options from $85.15 - $87.99
- Free Shipping

Limited time offer, ends 09/24
- Type: PCI to USB Card
- External USB Ports: 8x USB Ports
- Standard: USB 3.2
- Data Transfer Rate: Up to 10 Gbps
- Model #: E-PCIE24A4C3.2-4
- $61.99 –
- Free Shipping

- Type: PCI Express to Serial Port Card
- External Ports: 1 x Serial Port
- Operating Systems Supported: Windows 8 Windows 7 Vista Windows XP Windows ME Windows 98/98SE/98ME Server 2003 Server 2000(32bit Only) Linux Kernal 2.4 & 2.6 Mac 10.4 & Above
- Specifications: PCI Express: Fully Compliant with PCI Express Base Specification, Revision 1.0a PCIe Multi Function Peripheral Controller with x1 lane Interface Support for D1, D2, D3 Hot and D3 Cold Utilizes 100-MHz Differential PCI Express Common Reference Clock Support PCIe Power Management Serial Port: Four 16c450/550/Extended 550 Compatible UARTs Supports RS232 Modes Bi-directional Speeds from 50 bps to 16 Mbps/Port Full Serial Modem Control Supports Hardware, Software Flow Control 5, 6, 7, 8 and 9-bit Serial Format Support Support MODEM Modem Signals CTS, DSR, RI, DCD, th...
- Model #: SI-PEX15038
- $29.99 –
- More options from $29.99 - $35.99
- Free Shipping

- Type: PCI Express to M.2 Card
- Model #: 3#Q1105_B
- $16.99 –
- Free Shipping

- Type: PCI Express to PCI Card
- Operating Systems Supported: WIN 2000/XP/Vista
- Weight: 0.26
- Parts: 2 Year
- Model #: PEX1PCI1
- $59.99
- $51.99 –
- Save: 13%
- Free Shipping

- Type: Network Adapter
- Model #: E10G42BFSR/hp
- $44.99 –
- Free Shipping

- Type: PCI Express to Serial Port Card
- External Ports: 2 x Serial Ports
- Operating Systems Supported: All Windows OS
- Weight: 0.35 lb.
- Model #: SI-PEX15037
- $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:
“ 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“ Perfect addin usb card ”
USB C 10Gbps PCIe 3.0 Card,PCI Express x4 to USB 3.2 Type-C and Type-A 10Gb/s with Type-E A Key & USB 3.0 20Pin Motherboard Header Expansion Card for Front Panel w/ Full-Profile & Low-Profile Bracket“ 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

