- 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
- External 1394 Ports
- Sold by
- All Top Brands
- Availability
- Condition
- Current Promotion
- Discount
- Useful Links
- Show More
- Customer Ratings
- & up
SHOP BY Type

Limited time offer, ends 10/31
- Type: PCI Express to M.2 Card
- External USB Ports: PCI Express
- Model #: 5#Q1538_B
- $10.99 –
- Free Shipping

- Type: PCI Express to M.2 Card
- External Ports: 2 x M.2 (PCIe, M-Key, AHCI/NVMe, NGFF)
- Internal Ports: 1 x PCI Express x8 Male 2 x IDC (2 pin, Motherboard Header)
- Data Transfer Rate: PCI Express 3.0 (8 Gbps)
- Model #: PEX8M2E2

Limited time offer, ends 10/30
- Type: PCI Express to USB Card
- Model #: PCE2USB-AS2
- $29.99 –
- Free Shipping

- Type: Controller Card
- Model #: XIC 3342-8I
- $112.00
- See price in cart
- More options from $108.00 - $155.00
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 4 x USB 3.2 USB Type-A (9 pin, Gen 2, 10 Gbps)
- Standard: USB 3.1 Specification Rev. 1.0 USB Specification Rev. 2.0 PCI Express Base Specification Rev. 2.0 Intel xHCI Specification Rev. 1.1 UASP (USB Attached SCSI Protocol) Rev. 1.0
- Data Transfer Rate: USB 3.2 Gen 2 - 10 Gbit/s
- Model #: PEXUSB314A2V2

Limited time offer, ends 11/10
- Type: PCI Express to M.2 Card
- External USB Ports: PCI Express
- External Ports: PCIe 3.0 x4 and SATA
- Internal Ports: M Key M.2 NVMe Slot + B Key M.2 NGFF Slot
- Model #: PCE4XTM2-DL
- $19.99
- $17.99 –
- Save: 10%
- Free Shipping
- $14.00 - $17.99

- Type: PCI Express to USB Card
- External USB Ports: PCI Express
- Model #: UAC001
- $59.99
- $39.99 –
- Save: 33%
- Free Shipping

- Type: PCIe NVMe SSD
- Part Number: QM2-2P10G1TB
- Model #: QM2-2P10G1TB
- $236.99 –
- More options from $234.81 - $388.33
- Free Shipping

Limited time offer, ends 11/10
- Model #: PCE16X2OCK-4PW
- $34.99 –
- Free Shipping
- $34.50 - $34.99

Limited time offer, ends 11/10
- Type: NVME to PCIe 4.0
- Model #: 2NVTPCE+PCE8X
- $26.99 –
- Free Shipping

Limited time offer, ends 11/10
- Type: Controller Card
- Model #: PCETE20P
- $21.99 –
- Free Shipping
- $20.00 - $21.99

- 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 10/30
- 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

- 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
- $68.99 –
- More options from $68.99 - $89.00
- $7.02 Shipping

- Model #: AOC-SLG3-2M2-O
- $79.99 –
- More options from $64.99 - $94.96
- Free Shipping

Limited time offer, ends 11/19
- Type: PCI to USB Card
- External USB Ports: 5x USB Ports
- Standard: USB 3.2
- Data Transfer Rate: Up to 10 Gbps
- Model #: E-PCIE22A3C3.2-1
- $42.99 –
- 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

Limited time offer, ends 10/30
- Model #: 11-001-156
- $29.99 –
- Free Shipping

Limited time offer, ends 11/19
- Type: PCI to USB Card
- External USB Ports: 4x USB Ports
- Standard: USB 3.1
- Data Transfer Rate: Up to 10 Gbps
- Model #: E-PCIE24C-9
- $40.99 –
- Free 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

- Type: PCI Express to USB Card
- External USB Ports: 2x USB Ports
- External Ports: 2 x USB 3.0 A (9 pin; SuperSpeed) Female
- Internal Ports: 1 x SATA Power (15 pin) Plug
- Model #: PEXUSB3S23
- $27.99
- $25.99 –
- Save: 7%
- $4.99 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

- 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
- $80.99 –
- Save: 15%
- More options from $80.47 - $93.57
- Free Shipping

- Type: PCI Express to SATA Card
- Internal Ports: 2 x SATA 3.0
- Data Transfer Rate: 6.0 Gbps
- Operating Systems Supported: Windows 7 32/64-bit Vista 32/64-bit Windows XP 32/64-bit Server 2003-2008 32/64-bit
- Model #: SD-MPE40056
- $29.99
- $12.99 –
- Save: 56%
- Free Shipping

- Brand: Asus
- 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)
- Model #: B-ASUS ThunderboltEX 3
- $129.79 –
- More options from $129.79 - $236.55
- $29.99 Shipping

- 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 - $75.77
- $6.81 Shipping

- Type: PCI Express to Thunderbolt
- Model #: B-GIGABYTE GC-MAPLE RIDGE
- $219.59 –
- More options from $219.59 - $289.98
- Free Shipping

- Data Transfer Rate: 6.0 Gbps
- Dimensions: 1.50" x 5.50" x 7.00" (H x W x L)
- Weight: 0.3125
- Package Contents: 1 x PCIe to M.2 and SATA 6G card 1 x Driver CD 1 x User Manual 1 x SATA data cable 1 x M.2 Screw set 1 x Low Profile Bracket
- Model #: SI-PEX50065
- $12.99 –
- Free Shipping

Limited time offer, ends 11/10
- Model #: PCET25G-2P-RT
- $49.99 –
- Free Shipping
- $49.50 - $49.99

- Brand: Dell
- Series: Precision 3930R
- Model: N49JC, 0N49JC
- Type: PCIe Card
- Model #: N49JC
- $34.99 –
- Free Shipping

Limited time offer, ends 10/30
- 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 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 - $140.46
- Free Shipping

- Model #: CL-Wificard3-39
- $16.99 –
- Free Shipping

- Type: PCI Express to USB Card
- External USB Ports: 2x USB Ports
- Standard: USB 3.0
- Data Transfer Rate: 5 Gbps
- Model #: PEXUSB3S25
- $45.99 –
- Free Shipping

- Model #: CL-wificard2-59
- $12.99 –
- Free Shipping

- 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
- $238.94 –
- More options from $238.94 - $269.57
- $29.99 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“ 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




