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In Add-On Cards

Our most popular products, based on sales and updated frequently.
41
StarTech.com PEXUSB3S4V 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card
StarTech.com PEXUSB3S4V 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card
  • Type: PCI Express to USB Card
  • Internal Ports: 1 x SATA
  • Standard: USB 3.0
  • Data Transfer Rate: Up to 5.0 Gbps
  • Model #: PEXUSB3S4V
  • Item #: N82E16815158354
  • Return Policy: 30-Day Return Policy
$52.99
Free Shipping

Great improvement over simply using USB 2.0.

42
Silverstone SST-ES02-PCIE 2.4Ghz Wireless Computer Power and Reset Remote Switch
Silverstone SST-ES02-PCIE 2.4Ghz Wireless Computer Power and Reset Remote Switch
  • Type: PCI Express Controller Card
  • Internal Ports: 1 x Low profile PCIe x1
  • Specifications: Operation frequency: 2.4GHz EIRP: 3.76dBm (Measured max) Operating range: 20 meter (Free space) Battery type: CR2032 (Lithium manganese button battery) Nominal voltage: DC 3.0V Environment Operating temperature: 0 ~ 40 degree C Operating humidity: 10% ~ 90% non-condensing
  • Dimensions: 4.72" x 2.68" x 0.83"
  • Model #: SST-ES02-PCIE
  • Item #: N82E16815256029
  • Return Policy: 30-Day Return Policy
$38.99
Free Shipping

+ Works very well

43
StarTech.com PEXUSB312C3 2-Port PCIe USB 3.1 Card - 2 x USB-C - USB 3.1 Gen 2 - Up to 10Gbps
StarTech.com PEXUSB312C3 2-Port PCIe USB 3.1 Card - 2 x USB-C - USB 3.1 Gen 2 - Up to 10Gbps
  • Type: PCI Express to USB Card
  • External USB Ports: 2 x USB Type-C (24 pin) USB 3.1 (10Gbps) Female
  • Internal Ports: 1 x SATA Power (15 pin) Plug
  • Standard: USB 3.1 Gen 2
  • Model #: PEXUSB312C3
  • Item #: 9SIA6ZPK9W4629
  • Return Policy: View Return Policy
$62.81
44
GLOTRENDS PA09-SA M.2 SATA Adapter for M.2 NGFF SATA SSD,  With M.2 Screws and SATA Cable
GLOTRENDS PA09-SA M.2 SATA Adapter for M.2 NGFF SATA SSD, With M.2 Screws and SATA Cable
  • Type: PCIe expansion card
  • Model #: 06976007120024
  • Item #: 9SIAMKHJRZ6852
  • Return Policy: View Return Policy
$11.99
Free Shipping
45
Supermicro Accessory AOC-SLG3-2M2-O PCIe Add-On Card for up to two NVMe SSDs Brown Box
Supermicro Accessory AOC-SLG3-2M2-O PCIe Add-On Card for up to two NVMe SSDs Brown Box
$84.99
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- Includes low profile and full height brackets - Simple

46
StarTech.com PCI Express to PCI Adapter Card Model PEX1PCI1
StarTech.com PCI Express to PCI Adapter Card Model PEX1PCI1
  • Type: PCI Express to PCI Card
  • Operating Systems Supported: WIN 2000/XP/Vista
  • Weight: 0.26
  • Parts: 2 Year
  • Model #: PEX1PCI1
  • Item #: N82E16815158165
  • Return Policy: 30-Day Return Policy
Save 11%
$52.99
$59.99
Free Shipping

Tested using a Promise TX4300 SATA card. The Promise card asserted it self with no problems on a P6T Motherboard while plugged in to this adapter. As expected, data transfer rates did not appear to be hampered by this adapter as the PCI slot is slower than a PCI Express 1x slot (just Google pci vs pcie x1)

47
4 Port USB 3.0 PCIe Card 5Gpbs, RIITOP PCI-e to USB3.0 Expansion Adapter Card Controller, Low Profile Bracket, for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs
4 Port USB 3.0 PCIe Card 5Gpbs, RIITOP PCI-e to USB3.0 Expansion Adapter Card Controller, Low Profile Bracket, for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs
  • Type: USB3.0 expansion card
  • Model #: PCET4U3NEC-S
  • Item #: 9SIARE9K6S4387
  • Return Policy: View Return Policy
Limited Time Offer
$21.99
Free Shipping
48
SYBA SI-PEX15037 2 Serial DB9 RS-232 Ports PCI-e x1 Card with Low Profile Bracket WCH CH382
SYBA SI-PEX15037 2 Serial DB9 RS-232 Ports PCI-e x1 Card with Low Profile Bracket WCH CH382
  • Type: PCI Express to Serial Port Card
  • External Ports: 2 x Serial Ports
  • Operating Systems Supported: All Windows OS
  • Weight: 0.35 lb.
  • Model #: SI-PEX15037
  • Item #: 9SIA3XW59G8518
  • Return Policy: View Return Policy
$15.99
Free Shipping

This card works great for me. Not too many peripheral devices out there that use a serial devices anymore.

49
StarTech.com PEXUSB314A2V2 4-Port USB PCIe Card - 10Gbps USB 3.1/3.2 Gen 2 Type-A PCI Express Expansion Card with 2 Controllers - 4x USB-A - USB PCIe Add-On Adapter Card - Windows/Mac/Linux
StarTech.com PEXUSB314A2V2 4-Port USB PCIe Card - 10Gbps USB 3.1/3.2 Gen 2 Type-A PCI Express Expansion Card with 2 Controllers - 4x USB-A - USB PCIe Add-On Adapter Card - Windows/Mac/Linux
  • 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
  • Item #: N82E16815158471
  • Return Policy: 30-Day Return Policy
$123.99
$7.10 Shipping
50
StarTech PCIe to RS232 DB9 Serial Interface Card 11050PCSERIALCARD
StarTech PCIe to RS232 DB9 Serial Interface Card 11050PCSERIALCARD
Save 20%
$57.99
$72.99
Free Shipping
51
5-Port USB PCIe Card, 10Gbps USB 3.1 Gen 2 PCIe Card w/ 1x USB-C & 2x USB-A, 1x 2 Port IDC (Internal 5Gbps USB Header Expansion), USB C PCIe Card, PCI Express USB Controller - Windows/macOS/Linux (PEX
5-Port USB PCIe Card, 10Gbps USB 3.1 Gen 2 PCIe Card w/ 1x USB-C & 2x USB-A, 1x 2 Port IDC (Internal 5Gbps USB Header Expansion), USB C PCIe Card, PCI Express USB Controller - Windows/macOS/Linux (PEX
  • 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
  • Item #: N82E16815158475
  • Return Policy: 30-Day Return Policy
$68.99
$7.02 Shipping

Build quality High Speed Works great

52
SYBA USB 3.0 3+1 Port PCI-e Card, Free Low Profile Bracket, Renesas Chipset Model SD-PEX20137
SYBA USB 3.0 3+1 Port PCI-e Card, Free Low Profile Bracket, Renesas Chipset Model SD-PEX20137
  • 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
  • Item #: N82E16815124119
  • Return Policy: 30-Day Return Policy
$19.99
Free Shipping

Windows 7 x64, installed two. Great price, more ports.

53
EnLabs PCIEU34ACS20 USB C PCIe Card,PCI-e to 7 Ports USB 3.1(5Gbps) Type-C & 4x USB-A & Internal USB 20/19Pin for Front Panel PCI Express Expansion Card, Power by 15pin SATA w/ Full-Profile Bracket
EnLabs PCIEU34ACS20 USB C PCIe Card,PCI-e to 7 Ports USB 3.1(5Gbps) Type-C & 4x USB-A & Internal USB 20/19Pin for Front Panel PCI Express Expansion Card, Power by 15pin SATA w/ Full-Profile Bracket
  • Type: PCI Express to USB Card
  • External USB Ports: 5x USB Ports
  • Internal USB Ports: 2x USB Ports
  • Standard: USB 3.1
  • Model #: PCIEU34ACS20
  • Item #: 9SIACJFJ4J7463
  • Return Policy: View Return Policy
Limited Time Offer
$27.89
Free Shipping
54
GIGABYTE GC-MAPLE RIDGE Thunderbolt 4 PCI-Ex4 add on Card USB Type-C DisplayPort
GIGABYTE GC-MAPLE RIDGE Thunderbolt 4 PCI-Ex4 add on Card USB Type-C DisplayPort
  • Type: PCI Express to Thunderbolt
  • Model #: B-GIGABYTE GC-MAPLE RIDGE
  • Item #: 9SIC6E1M4H7164
  • Return Policy: View Return Policy
Save 9%
$226.73
$250.06
$29.99 Shipping

- Ultimately works and does what it claims to do - Depending on your GPU displayPort I/O, can upgrade fully to Thunderbolt DP

55
StarTech.com PEXUSB321C 1-Port USB 3.2 Gen 2x2 PCIe Card - USB-C SuperSpeed 20Gbps PCI Express 3.0 x4 Host Controller Card - USB Type-C PCIe Add-On Adapter Card - Expansion Card - Windows & Linux
StarTech.com PEXUSB321C 1-Port USB 3.2 Gen 2x2 PCIe Card - USB-C SuperSpeed 20Gbps PCI Express 3.0 x4 Host Controller Card - USB Type-C PCIe Add-On Adapter Card - Expansion Card - Windows & Linux
  • 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
  • Item #: N82E16815158470
  • Return Policy: 30-Day Return Policy
Save 14%
$57.99
$67.99
$6.81 Shipping
56
StarTech.com PEX1S1P950 PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card
StarTech.com PEX1S1P950 PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card
  • Type: PCIe Card with Serial and Parallel Port
  • External Ports: DB-25 (25 pin, D-Sub) DB-9 (9 pin, D-Sub)
  • Standard: PCI Express x1
  • Model #: PEX1S1P950
  • Item #: N82E16815158473
  • Return Policy: 30-Day Return Policy
Save 26%
$47.99
$64.99
$7.02 Shipping
57
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)
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
  • Item #: 9SIA1DS0DV6344
  • Return Policy: View Return Policy
$19.99
Free Shipping

Worked out of the box, in fact it's the first add-in USB card I've had that works at motherboard POST and within BIOS/UEFI. Also supports bootable drives, so I connected a bootable USB to this to install Windows and it worked just great. No additional driver installation necessary. I've owned a couple of other ones in the past (in different computers) that couldn't be used to boot USBs or navigate UEFI setup. Maybe it's because of this card, maybe it's because I'm using a newer motherboard (Gigabyte GA-Z170N-WiFi rev2.0), I don't know. Very good value.

58
QNAP QM2-2P10G1TB Dual M.2 2280 PCIe NVMe SSD & 10GbE Expansion Card
QNAP QM2-2P10G1TB Dual M.2 2280 PCIe NVMe SSD & 10GbE Expansion Card
  • Type: PCIe NVMe SSD
  • Part Number: QM2-2P10G1TB
  • Model #: QM2-2P10G1TB
  • Item #: N82E16815985002
  • Return Policy: 30-Day Return Policy
$238.99
Free Shipping
60
StarTech PEXUSB3S42V 4 Port Dual Bus PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA/LP4 Power
StarTech.com Adapter Model PEXUSB3S42V
  • 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
  • Item #: 9SIA6ZPKSH1586
  • Return Policy: View Return Policy
$91.50

Got me up and running has plenty of power have 37 drives external using on Dyconn 12 port usb 3.0