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:
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
ESTONE PCI Express Expansion Card, 10Gbps USB 3.2 Gen 2 7-Port Front Expansion Card, Connect 7 Devices Expanded - (3X USB C - 4X USB A)
Quick View
ESTONE PCI Express Expansion Card, 10Gbps USB 3.2 Gen 2 7-Port Front Expansion Card, Connect 7 Devices Expanded - (3X USB C - 4X USB A)

Limited time offer, ends 09/24

  • Type: PCI to USB Card
  • External USB Ports: 7x USB Ports
  • Standard: USB 3.2
  • Data Transfer Rate: Up to 10 Gbps
  • Model #: E-PCIE24A3C3.2-2
  •  
  • $49.99 
  • Free Shipping
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
  • $23.99
  •  
  • $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
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
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
StarTech 2P6G-PCIE-SATA-CARD SATA PCIe Card, 2 Port PCIe SATA Expansion Card, 6Gbps SATA, PCI Express to SATA Adapter, Non-RAID, PCIe to SATA Converter
Quick View
StarTech 2P6G-PCIE-SATA-CARD SATA PCIe Card, 2 Port PCIe SATA Expansion Card, 6Gbps SATA, PCI Express to SATA Adapter, Non-RAID, PCIe to SATA Converter
  • Type: PCI Express to SATA Card
  • Internal Ports: 2 x SATA
  • Operating Systems Supported: Operating System Supported: Linux 2.6.32 Operating System Supported: macOS 10.6.8+ Operating System Supported: Windows 10 Operating System Supported: Windows 11 Operating System Supported: Windows 7 Operating System Supported: Windows 8 Operating System Supported: Windows 8.1 Operating System Supported: Windows Server 2012 R2 Operating System Supported: Windows Server 2016 Operating System Supported: Windows Server 2019 Operating System Supported: Windows Vista Operating System Supported: Windows XP
  • Dimensions: 4.80" x 0.70" x 2.70"
  • Model #: 2P6G-PCIE-SATA-CARD
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
StarTech.com PEX8S1050LP 8-Port PCI Express Serial Card - 16C1050 UART RS232 - PCIE Low Profile Bracket - DB9 Serial Card (PEX8S1050LP)
Quick View
StarTech.com PEX8S1050LP 8-Port PCI Express Serial Card - 16C1050 UART RS232 - PCIE Low Profile Bracket - DB9 Serial Card (PEX8S1050LP)
  • Type: PCI Express to Serial Port Card
  • External Ports: 8 x DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 x PCI Express x1 Male
  • Operating Systems Supported: Windows CE 5.0, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2016, 2019 Linux 2.4.x to 4.11.x LTS Versions only
  • Model #: PEX8S1050LP
StarTech.com PEX4S953LP 4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Low Profile Bracket - Replacement for PEX4S952LP (PEX4S953LP)
Quick View
StarTech.com PEX4S953LP 4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Low Profile Bracket - Replacement for PEX4S952LP (PEX4S953LP)
  • Type: PCI Express to Serial Port Card
  • External Ports: 4 - DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 - LP4 (4 pin; Large Drive Power) Male Input
  • Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
  • Model #: PEX4S953LP
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
ORICO Monster USB 3.0 PCI - Express Card with 5 Rear USB 3.0 Ports and 1x Internal USB 3.0 20-PIN Connector Controller Adapter Card (PVU3-502I)
Quick View
ORICO Monster USB 3.0 PCI - Express Card with 5 Rear USB 3.0 Ports and 1x Internal USB 3.0 20-PIN Connector Controller Adapter Card (PVU3-502I)
  • Type: PCI Express to USB 3.0 Card
  • External USB Ports: 5 x USB 3.0 Ports
  • Internal USB Ports: 1 x Internal USB 3.0 19-PIN Connector can work with USB 3.0 20-PIN Adapter to Achieve 2x USB 3.0 Hosts. (Note: USB 3.0 20-PIN Adapter is not included in Package)
  • External Ports: 5 x USB 3.0 Ports
  • Model #: PVU3-5O2I-V1
  •  
  • $19.99 
  • Free 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
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 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
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
SYBA Low Profile PCI-Express 1394B/A Firewire Card Model SD-PEX30009
Quick View
SYBA Low Profile PCI-Express 1394B/A Firewire Card Model SD-PEX30009
  • Type: PCI Express to 1394 Card
  • External 1394 Ports: 2 x 1394B Ports + 1 x 1394A Port
  • Internal 1394 Ports: 1 x 1394A Firewire internal header (Shared Port)
  • Standard: 1394A/1394B
  • Model #: SD-PEX30009
  • $46.70
  •  
  • $38.99 
  • Save: 16%
  • Free Shipping
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
LetLinkSo PCIe 4.0 x4 to Oculink SFF-8612 Internal SFF-8611 Adapter Card for NVMe SSD, GPU, eGPU
Quick View
LetLinkSo PCIe 4.0 x4 to Oculink SFF-8612 Internal SFF-8611 Adapter Card for NVMe SSD, GPU, eGPU
  • Brand: LetLinkSo
  • Series: PCle to Oculink Adapter
  • Type: PCIe to Oculink Adapter
  • Standard: PCIe 4.0
  • Model #: LLS-CD-1PC1OC-01
  •  
  • $22.99 
  • Free Shipping
StarTech.com 4-Port USB Type-C PCIe Card - USB 3.2 10Gbps - USB-C PCI Express Expansion Card - 4x Independent USB Controllers - TAA-Compliant (P10Q4C-USB-CARD-LP)
Quick View
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
StarTech.com PEXUSB3S2EI 4-port PCI Express USB 3.0 card - 2 external, 2 internal - SATA power
Quick View
StarTech.com PEXUSB3S2EI 4-port PCI Express USB 3.0 card - 2 external, 2 internal - SATA power
  • Type: PCI to 1394 / USB Card
  • External USB Ports: 2-port USB 3.0
  • Internal USB Ports: 2x USB Ports
  • External Ports: 2 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Model #: PEXUSB3S2EI
  •  
  • $53.40 
  • 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:

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