Skip to main content
  • In Stock
  • Sold by Newegg
  • 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
Sort By:
View:
StarTech.com PCI Express to Mini PCI Express Card Adapter (PEX2MPEX)
Quick View
StarTech.com PCI Express to Mini PCI Express Card Adapter (PEX2MPEX)
  • Type: PCI Express to Mini PCI Express
  • Specifications: Bus Type: PCI Express Card Type: Standard Profile (LP bracket incl.) Connector Type(s): 1 - IDC (10 pin; Motherboard Header) Male Connector Type(s): 1 - Mini PCI Express x1 (52 pin) Slot Female Connector Type(s): 1 - USB B (4 pin) Female Humidity: 5% ~ 95% RH LED Indicators: 1 - Power Operating Temperature: 0°C to 55°C (32°F to 131°F) Storage Temperature: -20°C to 85°C (-4°F to 185°F) System and Cable Requirements: PCI Express expansion slot
  • Dimensions: 2.68" x 2.95" x 0.55"
  • Weight: 5.51 oz.
  • Model #: PEX2MPEX
  •  
  • $95.03 –
  • $11.99 Shipping
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
Quick View
  •  
  • $52.49 –
  • Free Shipping
VANTEC 4-Port SuperSpeed USB 3.0 PCIe Host Card w/ Internal 20-Pin Connector Model UGT-PC345
Quick View
VANTEC 4-Port SuperSpeed USB 3.0 PCIe Host Card w/ Internal 20-Pin Connector Model UGT-PC345
  • Type: PCI Express to USB Card
  • External USB Ports: 2x USB Ports
  • Internal USB Ports: 2x USB Ports
  • Standard: USB 3.0
  • Model #: UGT-PC345
USB C 10Gbps PCIe 3.0 Card,PCI Express x4 to USB 3.2 Type-C and Type-A 10Gb/s with Type-E A Key & USB 3.0 20Pin Motherboard Header Expansion Card for Front Panel w/ Full-Profile & Low-Profile Bracket
Quick View
  •  
  • $48.99 –
  • Free Shipping
YEPLOOK Wireless wifi N + Bluetooth BT 3.0 Half PCI-E Card Atheros AR5B195 for HP 592775-001
Quick View
  •  
  • $11.99 –
  • Free Shipping
SYBA SI-PEX15037 2 Serial DB9 RS-232 Ports PCI-e x1 Card with Low Profile Bracket WCH CH382
Quick View
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
4-Port USB PCIe Card, 10Gbps USB PCI Express Expansion Card w/ 2 Controllers, 2x USB-C & 2x USB-A ports (USB 3.2/3.1 Gen 2), USB/USB-C PCI-e Card, Full Profile Brackets - USB PCIe Add-On Card (PEXUSB3
Quick View
4-Port USB PCIe Card, 10Gbps USB PCI Express Expansion Card w/ 2 Controllers, 2x USB-C & 2x USB-A ports (USB 3.2/3.1 Gen 2), USB/USB-C PCI-e Card, Full Profile Brackets - USB PCIe Add-On Card (PEXUSB3
  • Type: PCI Express USB Card
  • External USB Ports: 2 x USB 3.2 Gen 2x1 USB Type-A (9 pin, 10 Gbps) 2 x USB 3.2 Gen 2x1 USB Type-C (24 pin, 10 Gbps)
  • Internal Ports: 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 #: PEXUSB312A2C2V
  •  
  • $227.02 –
  • $10.00 Shipping
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 10/30

  • 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
  •  
  • $24.89 –
  • Free Shipping
  • $22.13 - $24.89
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
  •  
  • $20.79 –
  • Free Shipping
Motherboard Mini PCI Express to Dual USB 3.0 20-pin Expansion Card Adapter,Mini PCIe PCI-e to 2 ports USB 3.0 w/ SATA 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 3.0 w/ SATA power

Limited time offer, ends 10/30

  • 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 SATA to take power by the board, or you can into a small Molex 4PIN power. (To change, please contact customer service) Built-in 19-pin can turn out two USB3.0 ports Compliance with PCI-Express Specification Revision 2.0 Compliance with xHCI specification version 1.0 Compliance with USB3.0 SuperSpeed specification version 1.0 USB support hot swap function Support Windows XP / 2003 / Vista / win7 / win8 / 2003 / linux, can provide LINUX drivers. Note: Mini PCI-E because without a 5V power supply, not directly to the USB-powered, so it can be inserted using the SATA power cabl...
  • Model #: 11-001-241
  •  
  • $24.89 –
  • Free Shipping
  • $22.13 - $24.89
Tripp Lite SRW18UHD 18U SmartRack Heavy-Duty Side-Mount Wall-Mount Rack Enclosure Cabinet
Quick View
Tripp Lite SRW18UHD 18U SmartRack Heavy-Duty Side-Mount Wall-Mount Rack Enclosure Cabinet
  • Type: Side-Mount Wall-Mount Rack Enclosure Cabinet
  • Color: Black
  • Weight Capacity: 500 lbs.
  • Specification: Installed whole system maximum rack depth: 32.5" Installed whole system minimum rack depth: 3" EIA Mounting Rails: Square holes / 12-24 threaded holes CERTIFICATIONS Certifications: EIA-310-E NOM (Mexico): Tested NOM (Mexico) Approvals: RoHS
  • Model #: SRW18UHD
  •  
  • $1,550.14 –
  • 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
  •  
  • $26.35 –
  • $10.00 Shipping
Atheros AR5B125 802.11BGN AW-NE186H  Half Mini PCI-E Wireless WiFi Card
Quick View
  •  
  • $11.99 –
  • Free Shipping
Atheros AR9285 AR5B95 150Mbps 802.11a/b/g/n Wireless Mini PCI-E WiFi Card
Quick View
  •  
  • $13.99 –
  • Free Shipping
Atheros AR5B225 WIFI Wireless802.11b/g/n Bluetooth 4.0 Half Mini PCI-E Card
Quick View
  •  
  • $12.99 –
  • Free Shipping
4 Port PCIE PCI-e to USB 3.0 Expansion Card - USB 3.0 Hub Controller PCI Express Card Adapter w/ Extra SATA 15 pin Power
Quick View
4 Port PCIE PCI-e to USB 3.0 Expansion Card - USB 3.0 Hub Controller PCI Express Card Adapter w/ Extra SATA 15 pin Power

Limited time offer, ends 10/30

  • Type: PCI Express to USB Card
  • External USB Ports: 4-port USB 3.0
  • Specifications: Bus Type:PCI Express Type Standard:Profile (LP bracket incl.) Chipset:NEC UPD720201 Interface: USB 3.0 Port Type and Rate :USB 3.0 - 5 Gbit/s Connector Type(s): 1 - PCI Express x1 Male External Ports: 4 - USB Type-A (9 pin) USB 3.0 Female Internal Ports : 1 - SATA 15pin interface
  • Model #: PCE4USB-RS4
  •  
  • $23.99 –
  • Free Shipping
  • $21.78 - $23.99
Dual Band Antennas+ Intel Wireless-AC 8265NGW NGFF 867M Wifi Bluetooth 4.2 Card
Quick View
  •  
  • $16.99 –
  • Free Shipping
M.2 NGFF Key A A+E to Mini PCI-E Adapter Wireless WiFi BT Network Card Converter
Quick View
  •  
  • $11.99 –
  • Free Shipping
Metal Case B+M Key M.2 NGFF SSD To 2.5 SATA 6Gb/s Adapter Card With Enclosure Socket M2 NGFF Adapter With 5 Screw
Quick View
  •  
  • $17.99 –
  • Free Shipping
En-Labs PCIE22XDB9V2 2 Port RS-232 RS232 DB9 Serial COM to PCI-E PCI Express Card Controller Adapter Converter w/ Full Profile Bracket
Quick View
  •  
  • $19.59 –
  • Free Shipping
  • $16.48 - $19.59

Bestselling Add-On Cards Reviews:

Anonymous
3/30/2026 11:29:09 PM
Great Value! Invisible!

“ NO, I bought this PCIx card and badda bing, badda boom it was working just fine immediately. ”

SYBA SI-PEX40110 M.2 M-Key NVMe PCI-e to PCI-e x4 Converter Card
Shawn S.
1/27/2026 9:32:37 AM
Excellent product at the best price I could find online

“ This replaced another StarTech powered PCI USB hub that uses a driver that is incompatible with Star Citizen, of all things. ”

StarTech.com PEXUSB3S7 7 Port PCI Express USB 3.0 Card - Standard & Low-Profile - SATA Power - UASP Support - 1 Internal & 6 External USB 3.0 Ports
David K.
1/1/2026 7:14:55 PM
Renesas Controller For Nvidia 3D Vision Emitter

“ I needed a PCIE usb card with a Renesas USB controller for my Nvidia 3D Vision emitter. ”

StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power Model PEXUSB3S24
Tim M.
12/31/2025 7:34:04 PM
BOOM. More USB ports than I can shake a stick at

“ Many many many more USB-A style though blue not red ports to add to your system. ”

PCIe USB 3.0 Card 7 Port, RIITOP PCI-e Express x1 to 7 Port USB3.0 Expansion Controller Card Adapter, NEC Chipset, No Need Power Supply (NOT Compatible 2U Case)
10/23/2024 12:00:48 AM
Maybe a Necessity if You Have USB-C on Front Panel

“ The PCI-E 1X to USB 3.2 GEN1 5Gbps 20pin Front Panel Header allows you to connect the USB-C front panel header to your PCI-E 1X slot ”

PCI-E 1X to USB 3.2 GEN1 5Gbps 20pin Front Panel Header (to Type-c Front Panel Header) + USB 3.0 19Pin Socket Expansion Card,Type-E Internal 20-pin Front Panel Connector Riser Card
Michael V.
11/16/2023 2:36:31 AM
East plug and play installation

“ Plugged right in and now I have a raft of USB ports. ”

PCI-E to 8 Port USB 3.0 (2xUSB-C, 6x USB-A ) Expansion Card 5Gbps, External PCI Express USB3.0 Adapter Card For Desktop PC PCI-e 1x, Support Windows 10/8/7/XP
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