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 3
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:
EnLabs PCIEU3C20SC PCIe Express Card to USB 3.0 Type-C w/ 2.4A Quick Charging and 19Pin USB 3.0 Dual,Port Power by 15pin SATA
Quick View
EnLabs PCIEU3C20SC PCIe Express Card to USB 3.0 Type-C w/ 2.4A Quick Charging and 19Pin USB 3.0 Dual,Port Power by 15pin SATA

Limited time offer, ends 08/31

  • Type: PCI Express to USB Card
  • External USB Ports: 2 Ext / 2 Int
  • External Ports: USB 3.0 Type-C +2.4A Quick Charging
  • Internal Ports: USB 3.0 20pin
  • Model #: PCIEU3C20SC
  •  
  • $18.89 
  • Free 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
  •  
  • $40.99 
  • $2.99 Shipping
StarTech.com 8P6G-PCIE-SATA-CARD Add-On Card
Quick View
StarTech.com 8P6G-PCIE-SATA-CARD Add-On Card
  • Type: PCI Express to SATA Card
  • External Ports: 8 x SATA III
  • Internal Ports: 2 x Mini SAS
  • Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019 macOS 10.10 to 12 Linux 2.6.32 and up
  • Model #: 8P6G-PCIE-SATA-CARD
USB 3.1 PCIe Card, RIITOP PCI-e 3.0 to USB3.2 Gen1 Adapter (10Gbps) Expands to 20Pin + Type-E + 1xUSB 3.0 + 1x USB C
Quick View
USB 3.1 PCIe Card, RIITOP PCI-e 3.0 to USB3.2 Gen1 Adapter (10Gbps) Expands to 20Pin + Type-E + 1xUSB 3.0 + 1x USB C

Limited time offer, ends 08/04

  • Type: PCIe expansion card
  • Model #: PCE32-ACE20P-UT
  •  
  • $39.99 
  • Free Shipping
  • $37.50 - $39.99
EN-Labs M.2 NVMe M-Key to SFF-8643 Adapter Expansion Card, MiniSAS to NVMe PCIe 4.0 Card for U.2 (SFF-8639) NVMe SSD - Support Intel 750 SSD
Quick View
  •  
  • $16.79 
  • Free Shipping
StarTech.com 9-pin Serial to 10-pin Header Slot Plate with Low Profile Bracket Model PLATE9MLP
Quick View
StarTech.com 9-pin Serial to 10-pin Header Slot Plate with Low Profile Bracket Model PLATE9MLP
  • Type: Serial Header Adapter
  • Specifications: Connectors DB9 Male, IDC 10 Cable Length 9" (229mm)
  • Weight: 0.05
  • Parts: 1 year limited
  • Model #: PLATE9MLP
Motherboard Mini PCI Express to Dual USB 3.0 20-pin Expansion Card Adapter,Mini PCIe PCI-e to 2 ports USB w/ Molex 4-pin Power
Quick View
Motherboard Mini PCI Express to Dual USB 3.0 20-pin Expansion Card Adapter,Mini PCIe PCI-e to 2 ports USB w/ Molex 4-pin Power

Limited time offer, ends 08/31

  • Type: Controller Card
  • Specifications: Main chip: NEC UPD720202 chipset Have unused mini PCIe slot for PC expansion slot a 19-pin USB3.0 theoretical transfer rate up to 5Gbps, much higher than the USB2.0 480Mb / s, up to 10 times; Backward compatible with USB2.0, USB1.1, USB1.0 Transfer rate: 5Gbps/ 480Mbps/ 12Mbps / 1.5Mbps Small Molex 4 pin to take
  • Features: This product is an ideal choice for any Mini PCI-Express expansible embedded or micro system needing larger volume and higher speed data transfer connectivity with USB devices. Real world applications such as: Connect to external hard disk drive, fast Solid State Drive(SSD), optical driver, high definition video camera etc.
  • Package Contents: 1 Piece Mini PCI-e to USB Expantion Card 1 Piece CD Driver
  • Model #: 11-001-242
  •  
  • $21.49 
  • Free Shipping
AAAwave PCI Express 1X to 16X Riser Card 1 to 4 USB3.0 Multiplier Hub Adapter Pack of 2
Quick View
  •  
  • $49.99 
  • Free Shipping
BUCIER PCIE X1 to SATA Card 4 Port, 6Gbps SATA 3.0 Controller, Includes 4 SATA Cables and Low Profile Bracket, for Windows 10/11
Quick View
  •  
  • $32.88 
  • Free Shipping
BUCIER PCIE X4 to SATA Card 6 Port, 6Gbps SATA 3.0 Controller, Includes 6 SATA Cables and Low Profile Bracket, for Windows 10/11
Quick View
  •  
  • $48.88 
  • Free Shipping
StarTech.com 2 Port PCI RS422/485 Serial Adapter Card with 161050 UART Model PCI2S4851050
Quick View
StarTech.com 2 Port PCI RS422/485 Serial Adapter Card with 161050 UART Model PCI2S4851050
  • Type: PCI to Serial Port Card
  • External Ports: 2 x Serial Ports
  • Operating Systems Supported: Windows 7 (32/64bit)/ Vista(32/64)/ XP(32/64) Windows Server 2008 R2/ 2003(32/64)/ 2000 Linux 2.4.x/ 2.6.x
  • Specifications: Bus Type: PCI / PCI-X (5 / 3.3V) Card Type: Standard Profile (LP bracket incl.) Chipset ID: SystemBase -SB16C1052PCI Connector Type(s): PCI / PCI-X (Universal 3.3 & 5V 32-bit) Male Data Bits: 5, 6, 7, 8 External Ports: DB-9 (9 pin ; D-Sub) Male FIFO: 256 Bytes Flow Control: Xon, Xoff, RTS#, CTS# Humidity: 5~85% RH Included in Package: 2 port PCI RS422/485 card Driver CD Low profile (half-height) brackets User Manual Industry Standards: PCI Local Bus Specification 2.3 PCI Power Management 1.1 Interface: Serial Max Baud Rate: 128 Kbps Operating Temperature: -10°C to 80°C (14°F to 176°F) OS Compatibility: Windows® 8 / 8.1 (32/64b...
  • Model #: PCI2S4851050
ORICO USB 3.0 PCI Express Card Hub Controller Adapter Card with 2 Rear USB 3.0 Hosts and Internal USB 3.0 with 15PIN Power Connector -Black
Quick View
ORICO USB 3.0 PCI Express Card Hub Controller Adapter Card with 2 Rear USB 3.0 Hosts and Internal USB 3.0 with 15PIN Power Connector -Black
  • Type: PCI Express to USB3.0 Card
  • External USB Ports: 2x USB3.0 Ports
  • Internal USB Ports: USB3.0 20PIN Internal but not USB Ports Internal,Need to work with other USB3.0 20PIN Adapter to Achieve 2x USB3.0 Ports for Front Panel
  • External 1394 Ports: None
  • Model #: PVU3-2O2I-V1
  •  
  • $16.99 
  • Free Shipping
BUCIER M.2 NVME Adapter M.2 SSD to PCIE 3.0 X1 Expansion Card Converter Riser Card M Key Connector for M2 NGFF NVMe SSD hard drive
Quick View
  •  
  • $21.89 
  • Free Shipping
Dual Port 10Gbps Type-E USB 3.1 Front Panel Socket to NVME M-Key M.2 Express Card Adapter for Motherboard, RIITOP Type-E to NVMe Adapter 10Gbps
Quick View
  •  
  • $29.99 
  • Free Shipping
  • $29.00 - $29.99
Graphics Card Video Card Laptop External Independent Graphics Dock Mini PCI-E Version for V8.0 EXP GDC Beast
Quick View
  •  
  • $59.89 
  • Free Shipping
ICY DOCK ToughArmor MB840M2P-B M.2 NVMe SSD to PCIe 3.0 x4 Removable SSD Mobile Rack for PCIe Expansion Slot
Quick View
ICY DOCK ToughArmor MB840M2P-B M.2 NVMe SSD to PCIe 3.0 x4 Removable SSD Mobile Rack for PCIe Expansion Slot
  • Type: PCI Express to M.2 Card
  • External USB Ports: 1 M.2 NVME & 1 SATA
  • External Ports: 1 x M.2 PCIe NVMe SSD (2230/2242/2260/2280/22110)
  • Standard: NVMe
  • Model #: MB840M2P-B
Express Card Mini PCI-E Version Expresscard V8.0 EXP GDC Beast PCIe PCI-E PCI Laptop External Independent Video Card Dock
Quick View
  •  
  • $78.88 
  • Free Shipping
MAIWO PCIe Gen3 x2 Card, PCIe USB 3.2 / 3.1- to 2-Port Type C HUB Internal Expansion Card Controller Adapter PCI Express Card Desktop PC Support Multiple INs
Quick View
  •  
  • $35.99 
  • Free Shipping
  • $20.79 - $35.99
20 Gbps PCI-Express Type C Expansion Card, ORICO PCI-Express to USB 3.2 Gen 2x2 (20 Gbps) for Windows 7/8/10/Linux/MAC OS, Compatible Slot: PCIe x4 (3.0), PCIe x8, PCIe x16
Quick View
20 Gbps PCI-Express Type C Expansion Card, ORICO PCI-Express to USB 3.2 Gen 2x2 (20 Gbps) for Windows 7/8/10/Linux/MAC OS, Compatible Slot: PCIe x4 (3.0), PCIe x8, PCIe x16
  • Type: PCI Express to USB Card
  • External USB Ports: 1x USB Port
  • Internal USB Ports: 1x USB Port
  • Cache Size/Speed: Transmission Rate:20Gbps(USB3.2 GEN2x2)
  • Model #: PE20-1C-BK-BP
  •  
  • $49.99 
  • Free Shipping
HP Serial Port Flex IO V3 5B895AA
Quick View
HP
HP Serial Port Flex IO V3 5B895AA
  • Brand: HP
  • Type: PCI Express to Serial Port Card
  • Model #: 5B895AA
SYBA USB 3.0 PCI-Express 2-port SATA Powered Controller Card Model SY-PEX20124
Quick View
SYBA USB 3.0 PCI-Express 2-port SATA Powered Controller Card Model SY-PEX20124
  • Type: PCI Express to USB Card
  • External USB Ports: 2x USB Ports
  • Internal Ports: 1 x SATA
  • Standard: USB 3.0
  • Model #: SY-PEX20124
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

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
Matthew W.
6/10/2023 7:37:42 AM
Easy way to add fast storage to Dell Precision Workstation

“ 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