Skip to main content
  • 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
Customer Ratings
  • Featured Brands

    See Deals from Rosewill
Sort By:
View:
eShinreal PCIe x8 to Quad M.2 NVMe SSD Switch Adapter (PLX8747)
Quick View
eShinreal PCIe x8 to Quad M.2 NVMe SSD Switch Adapter (PLX8747)
  • Type: Controller Card
  • Model #: STC PE382-4IL-47
SCSI SCA 80-Pin To SCSI 68-Pin/IDC 50-Pin Adapter SCSI 80-68-50 CARD
Quick View
  •  
  • $25.99 –
  • Free Shipping
StarTech.com 10P6G-PCIE-SATA-CARD Add-On Card
Quick View
StarTech.com 10P6G-PCIE-SATA-CARD Add-On Card
  • 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
SYBA 8" Molex 4-pin Male to 15-pin SATA Power Cable Model SY-PWCB-SATA
Quick View
SYBA 8" Molex 4-pin Male to 15-pin SATA Power Cable Model SY-PWCB-SATA
  • Type: PCI to SATA Card
  • Weight: 0.1
  • Model #: SY-PWCB-SATA
PCIE to USB 3.0 Expansion Card, 2 USB Type-A and 1 USB Type-C Ports,PCIe to USB C Adapter Card with Low Profile Bracket, for Windows 10/11
Quick View
  •  
  • $22.99 –
  • Free Shipping
  • $22.50 - $22.99
DP/N 0JY0YN C204N2 645A04 WiFi Bluetooth WLAN card for Dell Inspiron 11 3147 20
Quick View
  •  
  • $12.99 –
  • $4.99 Shipping
ASUS Thunderboltex 3 Thunderbolt/Usb Adapter, PCI Express to USB Card, 	1 x 9 pin TB header, 40Gbps transfer speed
Quick View
ASUS
ASUS Thunderboltex 3 Thunderbolt/Usb Adapter, PCI Express to USB Card, 1 x 9 pin TB header, 40Gbps transfer speed
  • 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
RAID PCI express SATA 3 Expansion Card PCIe to 4 port SATA III 3.0 3 adapter PCI-e SATA3 converter SATA3 controller Marvell
Quick View
  •  
  • $159.99 –
  • Free Shipping
LetLinkSo PCIe 5.0 M.2 SSD Expansion Card for 4 NVME M.2 SSD M Key 2280 2260 2242
Quick View
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
  •  
  • $62.99 –
  • Free Shipping
SYBA USB 3.0 4-port PCI-Express x1 Controller Card, VLI VL80x Chip Model SD-PEX20133
Quick View
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
  •  
  • $25.99 –
  • Save: 18%
  • Free Shipping
AUBEAMTO 4 Ports PCI-E to USB 3.0 Expansion Card (2 USB Type-A and 2 USB Type-C Ports), Internal Converter PCI Express Expansion Card for Desktop PC Card, Support WindowsXP/7/8/10 and MAC OS
Quick View
AUBEAMTO 4 Ports PCI-E to USB 3.0 Expansion Card (2 USB Type-A and 2 USB Type-C Ports), Internal Converter PCI Express Expansion Card for Desktop PC Card, Support WindowsXP/7/8/10 and MAC OS

Limited time offer, ends 10/14

  • 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
  •  
  • $25.97 –
  • Free Shipping
StarTech.com 3-port PCI Express USB 3.0 card + Gigabit Ethernet Model PEXUSB3S3GE
Quick View
StarTech.com 3-port PCI Express USB 3.0 card + Gigabit Ethernet Model PEXUSB3S3GE
  • Type: PCI Express to USB Card
  • External USB Ports: 3x USB Ports
  • External Ports: 3 - USB 3.0 A (9 pin; SuperSpeed) Female 1 - RJ-45 Female
  • Internal Ports: 1 - SATA Power (15 pin) Plug
  • Model #: PEXUSB3S3GE
SYBA SI-ADA40149 M.2 (B+M Key) 22x42 to SATA III 2 Ports Adapter Card, Jmicro JMB582 Chipset
Quick View
SYBA SI-ADA40149 M.2 (B+M Key) 22x42 to SATA III 2 Ports Adapter Card, Jmicro JMB582 Chipset
  • 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
Dual 2X NVME M Key M.2 to PCIE Express 3.0 Gen3 X8 X16 RAID Card VROC Raid0 Hyper Adapter (PCIe Bifurcation needed!)
Quick View
  •  
  • $21.99 –
  • Free Shipping
Dell 06n9rh Ultra Speed Quad NVME M.2 PCIE SSD Adapter Card
Quick View
  •  
  • $119.00 –
  • $12.00 Shipping
Supermicro RSC-R1UW-2E16 Riser Card
Quick View
Supermicro
Supermicro RSC-R1UW-2E16 Riser Card
  • Type: Riser Card
  • Compatibility: Supermicro SuperServer 5017R-WRF
  • Specifications: Expansion Slots:2 x PCI Express 3.0 x16 Form Factor:2U Plug-in Card Host Interface:PCI Express x16
  • Weight: 1
  • Model #: RSC-R1UW-2E16
  •  
  • $45.99 –
  • $2.99 Shipping
SYBA PCIe x1 to M.2(NGFF) + SATA 6G (HDD/SSD) with Standard & Low Profile Brackets Model SI-PEX50065
Quick View
SYBA PCIe x1 to M.2(NGFF) + SATA 6G (HDD/SSD) with Standard & Low Profile Brackets Model SI-PEX50065
  • 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
SYBA IO CREST 4-port, RS-232 Serial, PCIe x1, Revision 2.0, (Full & Low Profile); Exar Chipset Model SI-PEX15042
Quick View
SYBA IO CREST 4-port, RS-232 Serial, PCIe x1, Revision 2.0, (Full & Low Profile); Exar Chipset Model SI-PEX15042
  • Operating Systems Supported: Windows 8 Windows 7 XP Vista Windows Server 2003/2008/2012 Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newer
  • Weight: 1.01
  • Package Contents: 1 x 4-port PCIe Serial Card 1 x 4-port Serial Octopus Cable 4 x Serial Adapters 1 x User Manual 1 x Driver CD 1 x Low Profile Bracket
  • Model #: SI-PEX15042
  •  
  • $45.99 –
  • Free Shipping
StarTech Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel Port (DB25), PCI Adapter Expansion Card
Quick View
StarTech Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel Port (DB25), PCI Adapter Expansion Card
  • Type: Parallel Combo Card
  • Package Contents: 2S1P PCI Serial Parallel Combo Card with 16C550 UART 1 x Full-Profile Bracket 2 x Low-Profile Brackets (for Serial Ports) 1 x Low-Profile Bracket (for Parallel Port) 1 x Quick-Start Guide
  • Model #: PCI2S1P2
Micro SD TF Card  to 22pin SATA Adapter Converter Module Board 2.5" Hdd Enclosure,Micro SD TF Card to 22pin SATA Adapter Card 2.5" HDD Enclosure TF Cards to SATA
Quick View
Micro SD TF Card to 22pin SATA Adapter Converter Module Board 2.5" Hdd Enclosure,Micro SD TF Card to 22pin SATA Adapter Card 2.5" HDD Enclosure TF Cards to SATA
  • Specifications: Micro SD TF Card 22pin SATA Adapter Converter Module Board 2.5" Hdd Enclosure
  • Dimensions: 6.0x5.0cm/2.36x1.97in
  • Weight: 20G
  • Package Contents: 1 PACK
  • Model #: NTRATFTSATA01C
  •  
  • $15.98 –
  • Free Shipping
PCIe SATA Card 6 Port, RIITOP PCI-e x4 to SATA3 6Gbps Expansion Controller with ASM1166 Chipset Non-Raid, Support 6 SATA 3.0 Devices for Desktop PC (NOT support boot system!)
Quick View
PCIe SATA Card 6 Port, RIITOP PCI-e x4 to SATA3 6Gbps Expansion Controller with ASM1166 Chipset Non-Raid, Support 6 SATA 3.0 Devices for Desktop PC (NOT support boot system!)

Limited time offer, ends 10/07

  • 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
Dell Precision 3930R Rackmount Workstation Booster Card Expansion Card - N49JC 0N49JC
Quick View
DELL
Dell Precision 3930R Rackmount Workstation Booster Card Expansion Card - N49JC 0N49JC
  • Brand: Dell
  • Series: Precision 3930R
  • Model: N49JC, 0N49JC
  • Type: PCIe Card
  • Model #: N49JC
  •  
  • $34.99 –
  • Free Shipping
NVMe M.2 to 6 Sata Adapter Card, Internal 6 Port SATA III 6GB/s M.2 M-Key NVMe to SATA Adapter for Desktop PC Support PM for SSD and HDD
Quick View
  •  
  • $29.99 –
  • Free Shipping
  • $29.50 - $29.99
Quad NVMe PCIe 5.0 Adapter with Fan, RIITOP PCIe 5.0 x16 to 4X NVMe SSD Card (Comptible with PCI-e Bifurcation Motherboard)
Quick View
  •  
  • $59.99 –
  • Free Shipping
  • $59.50 - $59.99

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
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