- 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: 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

Limited time offer, ends 08/31
- Model #: 11-001-203
- $21.99 –
- Free 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
- $29.99 –
- Save: 40%
- More options from $29.99 - $38.60
- Free Shipping

- Type: PCI Express to SATA Card
- Internal Ports: 8 x SATA III
- Operating Systems Supported: Windows 7, 8, 8.1, 10, 11 Windows Server 2012 R2, 2016, 2019 macOS 10.10 to 12 Linux 2.6.32 and up
- Dimensions: 3.20" x 2.10" x 0.70"
- Model #: 6P6G-PCIE-SATA-CARD
- $95.99
- $78.99 –
- Save: 17%
- More options from $78.99 - $94.18
- Free 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
- $48.99 –
- Save: 24%
- More options from $48.99 - $63.64
- $7.02 Shipping

Limited time offer, ends 08/26
- Type: USB3.0 expansion card
- Model #: PCET7U3-N
- $27.99 –
- Free Shipping
- $25.50 - $27.99

- Type: PCI Express HDMI Capture Card
- External Ports: Input: 1 x HDMI 2.0 (19 pin) Output: 1 x HDMI 2.0 (19 pin)
- Internal Ports: PCI Express x4
- Standard: Industry Standards: NTSC, PAL-M, PAL-60, PAL Video Encoding: MPEG4/H.264 DirectShow Compatible
- Model #: PEXHDCAP4K
- $192.14 –
- More options from $192.14 - $206.71

- 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 - $326.70
- Free Shipping

Limited time offer, ends 08/26
- Type: Controller Card
- Model #: 4NV-PCE16X
- $26.99 –
- Free Shipping
- $25.00 - $26.99

Limited time offer, ends 08/31
- Type: Controller Card
- Model #: INU29P1X5MG
- $37.99 –
- Free Shipping

Limited time offer, ends 08/26
- Type: USB3.0 expansion card
- Model #: PCET4U3NEC-S
- $21.99 –
- Free Shipping
- $19.50 - $21.99

- Type: PCI Express to SATA Card
- Internal Ports: 4 x SATA III + 1 x M.2 B-Key
- Data Transfer Rate: Up to 1700 MB/s
- Package Contents: (1) 4 Port SATA + M.2 B-key PCI-e x4 Controller (4) SATA Cables (1) Manaul
- Model #: SI-PEX40138
- $35.19 –
- More options from $35.19 - $65.02
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 6x USB Ports
- Internal USB Ports: 1x USB Port
- External Ports: 6 - USB 3.0 A (9 pin; SuperSpeed) Female
- Model #: PEXUSB3S7
- $77.99 –
- More options from $77.99 - $86.98
- Free Shipping

- $28.89
- $22.99 –
- Save: 20%
- More options from $22.99 - $56.99
- Free Shipping

- Type: PCI Express Controller Card
- Internal Ports: 1 x Low profile PCIe x1
- Specifications: Operation frequency: 2.4GHz EIRP: 3.76dBm (Measured max) Operating range: 20 meter (Free space) Battery type: CR2032 (Lithium manganese button battery) Nominal voltage: DC 3.0V Environment Operating temperature: 0 ~ 40 degree C Operating humidity: 10% ~ 90% non-condensing
- Dimensions: 4.72" x 2.68" x 0.83"
- Model #: SST-ES02-PCIE
- $41.99 –
- More options from $41.99 - $45.09
- Free Shipping

- Type: PCI Express to WiFi 6 (802.11ax) Adapter
- External Ports: WiFi 6 (802.11ax)
- Internal Ports: PCIe
- Standard: WiFi 6 (802.11ax)
- Model #: 90IG0610-MA0R1T
- $69.99 –
- Free Shipping

- Type: PCIe expansion card
- Model #: 06976007120024
- $19.99
- $11.99 –
- Save: 40%
- Free Shipping

- 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
- $82.99 –
- Save: 12%
- Free Shipping

- Brand: eShinreal
- Series: Add on Card
- Model: XIC PE5162
- Type: PCI Express to M.2 Card
- Model #: XIC PE5162-4IL
- $50.00 –
- $15.00 Shipping

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

- Color: Black
- Gender: Male
- Age: Adult
- Model #: ThunderboltEX 3-TR
- $165.52 –
- More options from $159.00 - $219.99
- $29.99 Shipping

Limited time offer, ends 08/31
- Type: SATA Expansion Card
- Model #: 11-003-001
- $46.59 –
- Free Shipping

- Ports: 2 x USB A + 2 x USB C
- Transfer Rate: Up to 5 Gbps
- Color: Black
- Package Contents: 1x USB 3.0 PCI-E expansion card, 1x CD driver, 2 x installation screws and 1x user manual
- Model #: A-PCIE22A2C
- $29.99 –
- Free Shipping

- Type: PCI Express to SATA Card
- Internal Ports: 8 x M.2
- Operating Systems Supported: Windows 7, 8, 8.1, 10, 11 Windows Server 2012 R2, 2016, 2019 macOS 10.10 to 12 Linux 2.6.32 and up
- Dimensions: 4.70" x 2.10" x 0.70"
- Model #: 10P6G-PCIE-SATA-CARD
- $118.99 –
- More options from $118.99 - $137.26
- Free Shipping

- Model #: CL-wificard2-611
- $16.99 –
- Free Shipping

- Model #: GC-MAPLE RIDGE
- $188.86 –
- More options from $167.28 - $269.99
- Free Shipping

Limited time offer, ends 08/26
- Type: PCI Express to SATA Card
- Internal Ports: 6* SATA 3.0 Interface
- Data Transfer Rate: 6Gbps
- Operating Systems Supported: For Windows 7, 8.x, 10, For Windows Server 2008 R2, 2012, 2016,2019, For Linux 2.6.x to 4.x.
- Model #: PCETS6G-6PBK
- $41.99 –
- Free Shipping
- $39.00 - $41.99

Limited time offer, ends 08/31
- Type: PCI Express to USB Card
- External USB Ports: 4-port USB 3.0
- Specifications: Bus Type:PCI Express Type Standard:Profile (LP bracket incl.) Chipset:NEC UPD720201 Interface: USB 3.0 Port Type and Rate :USB 3.0 - 5 Gbit/s Connector Type(s): 1 - PCI Express x1 Male External Ports: 4 - USB Type-A (9 pin) USB 3.0 Female Internal Ports : 1 - SATA 15pin interface
- Model #: PCE4USB-RS4
- $21.99 –
- Free Shipping

- 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
- $102.52 –
- More options from $102.52 - $236.55
- $29.99 Shipping

- 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
- $17.99 –
- Free Shipping

Limited time offer, ends 09/15
- Type: Controller Card
- External Ports: 2 x SATA III
- Internal Ports: M.2 B+M Key interface
- Data Transfer Rate: SATA III 6Gb/s
- Model #: SI-ADA40149
- $19.79 –
- More options from $19.79 - $30.87
- Free Shipping

- Type: Expansion Module
- Model #: MCX311A-XCAT -
- $33.49 –
- More options from $33.49 - $49.99
- Free Shipping

Limited time offer, ends 08/30
- Type: PCI Express to 1394 Card
- External 1394 Ports: 2x 1394b (9-pin, Bi-lingual) 1x 1394a (6-pin)
- Standard: 1394A/1394B
- Data Transfer Rate: 800/400/200/100 Mbps
- Model #: SY-PEX30016
- $31.00 –
- More options from $31.00 - $35.35
- Free Shipping

- 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
- $19.99
- $14.49 –
- Save: 27%
- More options from $14.49 - $16.99
- Free Shipping

Limited time offer, ends 08/31
- Type: PCI Express to USB Card
- External USB Ports: 5x USB Ports
- Internal USB Ports: 2x USB Ports
- Standard: USB 3.1
- Model #: PCIEU34ACS20
- $27.89 –
- 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


