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 3
External 1394 Ports
Sold by
All Top Brands
Availability
Condition
Current Promotion
Discount
Useful Links
Customer Ratings
Sort By:
View:
PCIe 3.0 X2 USB3.1 Gen2 Expansion Card ASM3142, 10Gbps A-Key Type-E 20Pin Internal Front Type-C Header
Quick View
  •  
  • $55.78 
  • Free Shipping
eShinreal PCIe 4.0 x16 to 2x SlimSAS 8i (SFF-8654) Active Retimer Host Bus Adapter Card
Quick View
eShinreal PCIe x4 to NGFF M.2 NVMe SSD Adapter Card with Bracket
Quick View
  •  
  • $16.80 
  • $25.00 Shipping
eShinreal PCIe x4 to one M.2 NVMe SSD Adapter Card without Bracket
Quick View
  •  
  • $15.50 
  • $25.00 Shipping
NIC Card WISDUM ConnectX-4 MCX4121A-XCAT 10Gigabit Ethernet Card
Quick View
NIC Card WISDUM ConnectX-4 MCX4121A-XCAT 10Gigabit Ethernet Card

Limited time offer, ends 09/12

  • Model #: XM728-C7FT-93
  •  
  • $134.98 
  • Free Shipping
eShinreal M.2 M key to 10G SFP+ Network Card Set Intel 82599 10Gb/s
Quick View
  •  
  • $83.00 
  • $25.00 Shipping
PCIe Slot Products
Quick View
PCIe Slot Products
  • Screen Size: 20.0"
  • Type: Work / Business
  • Model #: 884826508670
  •  
  • $404.30 
Suitable for Raspberry Pi GPl0 Edge Expansion Board
Quick View
Suitable for Raspberry Pi GPl0 Edge Expansion Board

Limited time offer, ends 09/19

  • Model #: C075.70
  •  
  • $43.98 
  • Free Shipping
  • $42.58 - $43.98
Vszerda 4 Ports Gigabit M.2 M+B Key Ethernet Card SI-PEX24092
Quick View
Vszerda 4 Ports Gigabit M.2 M+B Key Ethernet Card SI-PEX24092

Limited time offer, ends 09/13

  • Model #: C745-Lsy715-2276
  •  
  • $123.78 
  • Free Shipping
NVIDIA ConnectX-7 100Gigabit Ethernet Card MCX713106ASCEAT
Quick View
  •  
  • $2,392.20 
  • Free Shipping
SIIG DP USB 3.0 7-Port PCIe I/E (JU-P70011-S1)
Quick View
  •  
  • $130.89 
  • Free Shipping
3060 3070 5060 5070 7060 7070 MFF VGA Adapter Card CN-0R8N2K R8N2K
Quick View
3060 3070 5060 5070 7060 7070 MFF VGA Adapter Card CN-0R8N2K R8N2K

Limited time offer, ends 09/13

  • Model #: C7EZ-Cookvio-Lsy830-177
  •  
  • $60.99 
  • Free Shipping
eShinreal 2-Port SFF-8644 to SFF-8643 Converter Card
Quick View
eShinreal 2-Port SFF-8644 to SFF-8643 Converter Card
  • Type: Controller Card
  • Model #: XIC 4622
VAL90 LA-9933P for E6440 laptop motherboard 85M2V 085M2V CN-085M2V graphics card
Quick View
VAL90 LA-9933P for E6440 laptop motherboard 85M2V 085M2V CN-085M2V graphics card

Limited time offer, ends 09/13

  • Model #: 20260720ZP1158C5JS
  •  
  • $147.23 
  • Free Shipping
  • $145.63 - $147.23
TX-R13M Jucheng Truthful & Excellent Full-Color LED screen Receiving card (Recordable)
Quick View
  •  
  • $152.34 
  • Free Shipping
Digi International DataFire SYNC/570i Digital WAN Adapters Model 70001321
Quick View
Digi International DataFire SYNC/570i Digital WAN Adapters Model 70001321
  • Type: PCI Express to Parallel / Serial Port
  • Operating Systems Supported: Windows NT 4.0, Windows 2000, Windows XP, Third Party X.25, Frame Relay and SNA solutions for UnixWare, OS/2, QNX, Linux and DOS available
  • Specifications: 4-port 256K UIB PCI Card Slot: Universal 3.3V and 5V support Line Speed: Aggregated performance up to 5 Mbps Memory: Supports 4 DMA channels on 2-port boards; 8 DMA channels on 4-port boards Protocol: Supports frame relay, X.25, PPP and SNA Graphical Interface: Easy-to-use, Full tracking and monitoring Routing: Supports IP/IPX Circuits: Supports up to 256 virtual circuits (X.25) Flow Control: BECN, LMI Frame Relay: Supports up to 64 DLCIs per board Transmission: Multiple CIR options Compliance: Microsoft's NDIS and WAN Miniport driver Data Flow: DTE/DCE support Power Requirements: +5VDC...
  • Model #: 70001321
  •  
  • $1,221.00 
  • Free Shipping
Sato WWCL45060 1-Port Parallel Adapter
Quick View
  •  
  • $244.50 
  • Free Shipping

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