• In Stock
  • Sold by Newegg
  • 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
Useful Links
Customer Ratings
Sort By:
View:
NGFF PCIE PCI Express Extender Riser Card Adapter 4 PCI-E Slot Adapter PCIe Port Multiplier M2 Card for Mining
Quick View
  •  
  • $98.49 
  • Free Shipping
2 in 1 Combo Mini PCI- E 2 Lane M.2 NGFF & mSATA SSD to SATA 3.0 III Adapter Converter PCBA
Quick View
  •  
  • $44.98 
  • Free Shipping
  • $42.58 - $44.98
EP-029 PCI-Express PCIE PCI-E X1 X4 X8 X16 To PCI Bus Riser Card Adapter Converter With Bracket for Windows
Quick View
  • $20.81 - $23.21
SA-078 PCI-E To 4 Ports SATA 3.0 ESATA PCIE SATA3 6Gbps Expansion Card PCI-E Adapter
Quick View
  • $19.57 - $21.97
U3-038 4 Ports PCI-E to USB 3.0 HUB PCI Express Expansion Card Adapter 5Gbps for Motherboard
Quick View
  • $17.90 - $20.30
Riser Card 60CM USB 3.0 Cable PCI Express 1X to 16X Extender PCIe Adapter for Bitcoin Miner Mining
Quick View
  •  
  • $48.22 
  • Free Shipping
  • $45.82 - $48.22
Express Card Mini PCI-E Version Expresscard V8.0 EXP GDC Beast PCIe PCI-E PCI Laptop External Independent Video Card Dock
Quick View
  •  
  • $121.40 
  • Free Shipping
  • $119.00 - $121.40
7 Ports PCI-E to USB 3.0 HUB PCI Express Expansion Card Adapter 5Gbps for Motherboard
Quick View
  • $33.07 - $35.47
TXA092 PCIE Card 2.5Gbps Gigabit Network Card 10/100/1000Mbps RTL8125b RJ45 Ethernet Network Card PCI-E Network Adapter
Quick View
  •  
  • $48.41 
  • Free Shipping
Vszerda Oculink SFF-8612 SFF-8611 to PCIE PCI-Express 16x 4X Adapter with SATA Power Port for Mainboard Graphics Card
Quick View
Vszerda Oculink SFF-8612 SFF-8611 to PCIE PCI-Express 16x 4X Adapter with SATA Power Port for Mainboard Graphics Card
  • Brand: xiwai
  • Part Number: SF-056
  • Dimensions: 10 cm x 10 cm x 1 cm
  • Weight: 0.05 kilograms
  • Model #: SF-056
  •  
  • $60.78 
  • Free Shipping
10Gb SFP+ PCI-E Network Card NIC, Compare to Intel X520-DA1 (E10G42BTDA), with Intel 82599EN Chip, Single SFP+ Port, PCIe X8, Ethernet LAN Network Adapter Support Windows/Linux/VMware
Quick View
  •  
  • $87.34 
  • Free Shipping
  • $86.34 - $87.34
PCI-Express 3.0/4.0 16x Riser Card 90 Degree High Speed Riser Card for 1U / 2U Server Case (PCI-E 3.0 for 1U)
Quick View
  • $19.27 - $21.67
SF-056 Oculink SFF-8612 SFF-8611 to PCIE PCI-Express 16x 4x Adapter with SATA Power Port for Mainboard
Quick View
  • $33.07 - $35.47
Key B to Mini PCIE PCI-E Adapter Converter for 3G/4G/5G Module with Screwdriver Screws
Quick View
  •  
  • $41.83 
  • Free Shipping
  • $39.43 - $41.83
Vszerda PCIE to U.2 Adapter Card, PCIE X16 to 4 Port U.2 NVME SFF-8643/8639 Expansion Card, PCIE 4.0 U.2 with LED indicator for
Quick View
Vszerda PCIE to U.2 Adapter Card, PCIE X16 to 4 Port U.2 NVME SFF-8643/8639 Expansion Card, PCIE 4.0 U.2 with LED indicator for
  • Brand: PUSOKEI
  • Part Number: PUSOKEIyt275bmuoa1351
  • Interface: pci_express_3.0
  • BUS: pci_express_3.0
  • Model #: PH49B3
  •  
  • $77.78 
  • Free Shipping
U.2 to PCIE Expansion Card,SFF 8639 to PCIE 3.0 x4 Riser Card,PCI-E 3.0 X4 SATA Adapter,for 2.5" U.2 NVME SSD and 2.5" SATA SSD.
Quick View
  •  
  • $109.40 
  • Free Shipping
  • $107.00 - $109.40

Bestselling Add-On Cards Reviews:

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

“ 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
Anonymous
3/7/2026 8:46:40 PM
Clean looking way to add more USB slots to a case

“ The added USB slots are very useful and the board plugged right into one of the unused PCIE slots on my motherboard. ”

StarTech PEXUSB4DP 4 Port PCI Express Low Profile High Speed USB Card - PCIe USB 2.0 Card - PCI-E USB 2.0 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)
Anonymous
12/2/2025 3:32:32 PM
Works fine, but I wasn't sent SYBA brand.

“ My reads seem fine but my writes seem a bit low compared to my NVMe drive in my MB, that could just be my new cheap drive I put in, or maybe the PCIe slot I used though. ”

SYBA SI-PEX40110 M.2 M-Key NVMe PCI-e to PCI-e x4 Converter Card
Anonymous
11/16/2025 7:28:10 AM
Simple setup, just plug and play

“ Make sure your PCI slot is operational. ”

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