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StarTech.com PCI Express to 4 Slot PCI Expansion System Model PEX2PCI4
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StarTech.com PCI Express to 4 Slot PCI Expansion System Model PEX2PCI4
  • Type: PCI Express to PCI Card
  • Weight: 5.76
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: PEX2PCI4
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  • $476.99 
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StarTech.com 4 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA / SP4 Power Model PCIUSB3S4
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StarTech.com 4 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA / SP4 Power Model PCIUSB3S4
  • Type: PCI to USB Card
  • External USB Ports: 4x USB Ports
  • External Ports: 4 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal Ports: 1 - SATA Power (15 pin) Plug 1 - SP4 (4 pin; Small Drive Power) Plug
  • Model #: PCIUSB3S4
USB C 20Gbps PCIe 3.0 Card,PCI Express x4 to USB 3.2 Gen2X2 Type-C Expansion Card with Full-Profile & Low-Profile Bracket,USB 3.2 20Gb/s to PCIe Add On Card Adapter - SATA Powered
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  • $40.49 
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Silverstone Add-On Card Model SST-ECU04-E
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Silverstone Add-On Card Model SST-ECU04-E
  • Type: Low profile - PCI-E 2.0 x2 (10Gbps)
  • Internal USB Ports: 2 x 19pin USB 3.1 ports
  • Standard: USB 3.1
  • Data Transfer Rate: Up to 10Gbps
  • Model #: SST-ECU04-E
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  • $54.99 
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PCIe 1 to 4 Riser Card, Pcie Splitter 1 to 4 PCI Riser Card, 4 Risers into 1 PCI Card, PCIe Risers 1X to External 4 PCI-e USB 3.0 Adapter Multiplier for Bitcoin Miner Device
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  • $23.99 
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3 Pack 6-Pins PCI-e VER 006C PCl-E 16x to 1x Powered Riser Adapter Card with 2ft USB 3.0 Extension Cable &  SATA to PCIe 6pin Power Cable GPU Riser Adapter Ethereum Mining ETH
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3 Pack 6-Pins PCI-e VER 006C PCl-E 16x to 1x Powered Riser Adapter Card with 2ft USB 3.0 Extension Cable & SATA to PCIe 6pin Power Cable GPU Riser Adapter Ethereum Mining ETH

Limited time offer, ends 08/31

  • Type: Riser Card
  • External USB Ports: 3x USB Ports
  • Specifications: ----Board size: approx.12.8cm x 4.2cm x 1.0cm/5.03" x 1.65" x 0.39"----4x 270uF FP solid capacitors
  • Model #: 311009V6C
  • $35.99
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  • $30.89 
  • Save: 14%
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USB 3.2 Gen 2 (10 Gbps) 1-Port Type-C M.2 22x60 B+M key Controller Card
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USB 3.2 Gen 2 (10 Gbps) 1-Port Type-C M.2 22x60 B+M key Controller Card
  • Type: PCI Express to M.2 Card
  • Internal USB Ports: 1x USB Port
  • Parts: 3 Years
  • Labor: 3 Years
  • Model #: SY-ADA20232
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  • $31.99 
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StarTech.com 3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter Model PEX1394B3LP
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StarTech.com 3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter Model PEX1394B3LP
  • Type: PCI Express to 1394 Card
  • External 1394 Ports: 2 x 1394b 1 x 1394a
  • Standard: 1394A x 1/1394B x 2
  • Data Transfer Rate: FireWire 800 IEEE-1394b - 800 Mbit/s
  • Model #: PEX1394B3LP
  • $82.99
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  • $75.99 
  • Save: 8%
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StarTech PEXUSB4DP 4 Port PCI Express Low Profile High Speed USB Card - PCIe USB 2.0 Card - PCI-E USB 2.0 Card
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StarTech PEXUSB4DP 4 Port PCI Express Low Profile High Speed USB Card - PCIe USB 2.0 Card - PCI-E USB 2.0 Card
  • Type: PCI to USB Card
  • External USB Ports: 3 x USB A Female
  • Internal USB Ports: 1 x USB A Female
  • Standard: USB 2.0
  • Model #: PEXUSB4DP
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  • $45.99 
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StarTech.com 4-port PCI Express USB 3.0 card Model PEXUSB3S42
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StarTech.com 4-port PCI Express USB 3.0 card Model PEXUSB3S42
  • Type: PCI Express to USB Card
  • External USB Ports: 16x USB Ports
  • External Ports: 3 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal Ports: 1 - SATA Power (15 pin) Plug 1 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Model #: PEXUSB3S42
StarTech.com 16-Inch DB25 Parallel Female to IDC 25-Pin Header Slot Plate (PLATE25F16)
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StarTech.com 16-Inch DB25 Parallel Female to IDC 25-Pin Header Slot Plate (PLATE25F16)
  • Type: Parallel Header Adapter
  • Specifications: Cable Length: 16" Number of Connectors: 2 Connector Details: 1 x 25-pin DB-25 Female Parallel Color: AGray
  • Weight: 0.05
  • Parts: 1 year limited
  • Model #: PLATE25F16
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  • $11.99 
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StarTech.com 2 port PCI Express SuperSpeed USB 3.0 Card Model PEXUSB3S11
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StarTech.com 2 port PCI Express SuperSpeed USB 3.0 Card Model PEXUSB3S11
  • Type: PCI Express to USB Card
  • External USB Ports: 1x USB Port
  • Internal USB Ports: 1x USB Port
  • Standard: USB 3.0
  • Model #: PEXUSB3S11
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  • $44.99 
  • $1.99 Shipping
2PORT PCI EXPRESS SERIAL CARD
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2PORT PCI EXPRESS SERIAL CARD
  • Color: Black
  • Model #: PEX2S1050
StarTech.com PCI Express X1 to X16 Low Profile Slot Extension Adapter Card Model PEX1TO162
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StarTech.com PCI Express X1 to X16 Low Profile Slot Extension Adapter Card Model PEX1TO162
  • Type: PCI Express to PCI Card
  • Data Transfer Rate: 2.5 Gbps
  • Specifications: Connectors: 1 x x1 PCI Express Male 1 x x16 PCI Express Female
  • Dimensions: 4.99" x 1.74" x 0.33"
  • Model #: PEX1TO162
  • $32.99
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  • $30.99 
  • Save: 6%
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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)
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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
Syba 8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SI-ADA15071
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Syba 8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SI-ADA15071
  • Type: Controller Card
  • External Ports: 8 x Serial Ports
  • Operating Systems Supported: Windows 10 or Higher Ubuntu 19.04 or Higher
  • Package Contents: 8 Port Serial DB9 M.2 B+M Key Module Driver CD x1 Manual x1
  • Model #: SI-ADA15071
SYBA 4 Serial Ports PCI-e Controller Card, w/ Fan-out Cable, Low Profile Bracket, Chipset (WCH384L) Model SI-PEX15038
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SYBA 4 Serial Ports PCI-e Controller Card, w/ Fan-out Cable, Low Profile Bracket, Chipset (WCH384L) Model SI-PEX15038
  • Type: PCI Express to Serial Port Card
  • External Ports: 1 x Serial Port
  • Operating Systems Supported: Windows 8 Windows 7 Vista Windows XP Windows ME Windows 98/98SE/98ME Server 2003 Server 2000(32bit Only) Linux Kernal 2.4 & 2.6 Mac 10.4 & Above
  • Specifications: PCI Express: Fully Compliant with PCI Express Base Specification, Revision 1.0a PCIe Multi Function Peripheral Controller with x1 lane Interface Support for D1, D2, D3 Hot and D3 Cold Utilizes 100-MHz Differential PCI Express Common Reference Clock Support PCIe Power Management Serial Port: Four 16c450/550/Extended 550 Compatible UARTs Supports RS232 Modes Bi-directional Speeds from 50 bps to 16 Mbps/Port Full Serial Modem Control Supports Hardware, Software Flow Control 5, 6, 7, 8 and 9-bit Serial Format Support Support MODEM Modem Signals CTS, DSR, RI, DCD, th...
  • Model #: SI-PEX15038
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  • $23.99 
  • Free Shipping
StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232
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StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232
  • Type: PCI Express
  • External Ports: 16 x DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 x SP4 (4 pin, Small Drive Power) Male
  • Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.6x to 4.2x LTS Versions only
  • Model #: PEX16S550LP
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  • $421.99 
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SIIG 4-Port USB 3.0 PCIe Model JU-P40412-S1
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SIIG 4-Port USB 3.0 PCIe Model JU-P40412-S1
  • Type: PCI Express to USB Card
  • External USB Ports: 4x 9-pin, Type A, USB 3.0, Female, External
  • Internal Ports: 1x 15-pin, SATA power connector
  • Standard: USB 3.0
  • Model #: JU-P40412-S1
StarTech.com PCI Express to 2 PCI & 2 PCIe Expansion Enclosure System - Full Length
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StarTech.com PCI Express to 2 PCI & 2 PCIe Expansion Enclosure System - Full Length
  • Type: Riser Card
  • Specifications: Expansion Slots:2 x PCI 32-bit/33 MHz Full-height 2 x PCI Express x1 Host Interface:PCI Express
  • Weight: 20
  • Parts: 2 Year
  • Model #: PEX2PCIE4L
SATA 3.0 5 Ports Hard Drive Hub Expansion Card Splitter,SATAIII 6Gbps Riser Card w/SATA & DC 5V Power for Win7 Win8 Win XP, etc,Requires Motherboard SATA Port Multiplier Supporting
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  • $28.69 
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SYBA 2-Port SATA 6G Card, Mini PCI-Express Form Factor, non-RAID, ASM1061 Chipset Model SD-MPE40056
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SYBA 2-Port SATA 6G Card, Mini PCI-Express Form Factor, non-RAID, ASM1061 Chipset Model SD-MPE40056
  • 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
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  • $12.99 
  • Save: 56%
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StarTech.com PEX8S1050LP 8-Port PCI Express Serial Card - 16C1050 UART RS232 - PCIE Low Profile Bracket - DB9 Serial Card (PEX8S1050LP)
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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 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)
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SYBA PCI-Express 2-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15022
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SYBA PCI-Express 2-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15022
  • Type: PCI Express to Serial Port Card
  • External Ports: 2 x Serial Ports
  • Operating Systems Supported: Supports Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
  • Weight: 0.35
  • Model #: SD-PEX15022
  • $30.99
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  • $16.99 
  • Save: 45%
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StarTech  2 Port USB A Female Low Profile Slot Plate Adapter Model USBPLATELP
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StarTech 2 Port USB A Female Low Profile Slot Plate Adapter Model USBPLATELP
  • Type: USB Header Adapter
  • External USB Ports: 2x USB Ports
  • Standard: USB 2.0
  • Data Transfer Rate: 480/12/1.5 Mbps
  • Model #: USBPLATELP
acomdata 2-Port SuperSpeed USB 3.0 PCI-Express Card Model ADPU3-PCIX
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acomdata 2-Port SuperSpeed USB 3.0 PCI-Express Card Model ADPU3-PCIX
  • Type: PCI Express to USB Card
  • External USB Ports: 2 x USB 3.0 Ports
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: ADPU3-PCIX
  • $28.99
  •  
  • $19.99 
  • Save: 31%
  • $2.99 Shipping
Qnap Qm2-4P-384 M.2 To Pci Express Adapter
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  • $273.99 
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Silverstone Add-On Card Model SST-ECWA2-LITE
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Silverstone Add-On Card Model SST-ECWA2-LITE
  • Type: Mini PCI Express to PCI Express
  • External USB Ports: 1 x 9pin USB 2.0 pin header, 1 x USB Type-A female port
  • Standard: 1 x Low profile PCI-E
  • Specifications: Adapter card Connector: 52pin Mini PCI-E connector 1 x 9pin USB 2.0 pin header 1 x USB Type-A female port Bracket: 1 x Standard 1 x Low profile Support voltage: 1.5V and 3.3V Antenna Type: Dipole Gain(dBi): 2.4 - 2.5GHz 2dBi 5.1 - 5.8GHz 3dBi Polarization: Linear Vertical Radiation: Omni-directional SWR <= 2.0 Impedance: 50 Ohms Max power: 50W
  • Model #: SST-ECWA2-LITE
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  • $30.99 
  • 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