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    • Computers, Tablets & Network Hardware
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    • Interface & Add-On Cards
    • Port Expansion Cards

    Port Expansion Cards

    Side Refine Panel

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    • Interface/Add-On Cards
    • Port Expansion Cards
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    Shop by Compatible Port

    • PCI

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    10,141 Results

      • PCI
      • USB 3.0
      • USB 2.0
      • PCI Express x1
      • PCI Express x4
      • PCI Express x16
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      • USB 2.0
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      • Serial (RS-232)
      • Firewire Cards
      • Parallel Cards
      • All Listings filter applied
    • PCI-E Express USB 3.0 Expansion Card Adapter 4 Ports Hub Adapter Controller
      SPONSORED

      PCI-E Express USB 3.0 Expansion Card Adapter 4 Ports Hub Adapter Controller

      C $12.44
      C $24.77 shipping
      439 sold
    • PCIe PCI Express to 6G SATA3.0 4-Port SATA III Expansion Controller Card Adapter

      PCIe PCI Express to 6G SATA3.0 4-Port SATA III Expansion Controller Card Adapter

      C $16.46
      C $2.56 shipping
      374 sold
    • Gigabyte GC-Titan Ridge 2.0 Thunderbolt 3 USB-C flashed Mac Pro 5,1 BootScreen

      Gigabyte GC-Titan Ridge 2.0 Thunderbolt 3 USB-C flashed Mac Pro 5,1 BootScreen

      C $218.77
      C $34.69 shipping
      978 sold
    • Sonnet Technologies USB3-4PM-E Allegro PCI-e Card 4-Port, Allegro Type A USB 3.2

      Sonnet Technologies USB3-4PM-E Allegro PCI-e Card 4-Port, Allegro Type A USB 3.2

      C $27.24
      C $27.48 shipping
      or Best Offer
      6 watching
    • PCI-E Express USB 3.0 Expansion Card Adapter 4 Ports USB Adapter Controller.

      PCI-E Express USB 3.0 Expansion Card Adapter 4 Ports USB Adapter Controller.

      C $11.66
      C $24.72 shipping
      135 sold
    • Inateck PCIe to USB 3.2 Gen 2 Expansion Card 8 Gbps 3 Type A & 2 Type C Ports

      Inateck PCIe to USB 3.2 Gen 2 Expansion Card 8 Gbps 3 Type A & 2 Type C Ports

      4.5 out of 5 stars (2)2 product ratings - Inateck PCIe to USB 3.2 Gen 2 Expansion Card 8 Gbps 3 Type A & 2 Type C Ports
      C $42.47
      C $16.00 shipping
      or Best Offer
      162 sold
    • PCI-E Express X1 to Dual PCI Riser Extend Adapter Card With USB 3.0 Cable

      PCI-E Express X1 to Dual PCI Riser Extend Adapter Card With USB 3.0 Cable

      C $28.96
      Was: C $30.82
      C $1.93 shipping
      572 sold
    • Vintage Apple Macintosh PCI Sonnet Tango 2.0 Firewire 400/USB 1.1&2.0 Combo Card

      Vintage Apple Macintosh PCI Sonnet Tango 2.0 Firewire 400/USB 1.1&2.0 Combo Card

      C $51.48
      193 sold
    • ASUS ThunderboltEX 4 Expansion Card  2 x Thunderbolt 4 / USB-C 2x Mini-DP

      ASUS ThunderboltEX 4 Expansion Card 2 x Thunderbolt 4 / USB-C 2x Mini-DP

      C $138.37
      C $24.64 shipping
      or Best Offer
    • Dell Broadcom Dual Port 10GbE SFP+ Converged Network Adapter 0Y40PH _

      Dell Broadcom Dual Port 10GbE SFP+ Converged Network Adapter 0Y40PH _

      C $75.00
      C $63.00 shipping
      or Best Offer
    • NGFF M.2 SSD state drive 2242 to 2280 2230 to 2280 new 2022 B1B9 .FAST

      NGFF M.2 SSD state drive 2242 to 2280 2230 to 2280 new 2022 B1B9 .FAST

      C $2.05 to C $2.70
      Was: C $2.42
      Free shipping
    • SIIG USB 3.0 Type-C & Type-A 3-Port PCIe Card with M.2 SATA SSD Adapter

      SIIG USB 3.0 Type-C & Type-A 3-Port PCIe Card with M.2 SATA SSD Adapter

      5 out of 5 stars (9)9 product ratings - SIIG USB 3.0 Type-C & Type-A 3-Port PCIe Card with M.2 SATA SSD Adapter
      C $42.47
      C $17.00 shipping
      275 sold
    • Dell Thunderbolt 3 PCIEDPWC500  8DTHW  Add-In Card for Dell Desk computers

      Dell Thunderbolt 3 PCIEDPWC500 8DTHW Add-In Card for Dell Desk computers

      C $59.20
      C $19.76 shipping
      11 watching
    • SIIG FireWire (1394) 3-Port (Two External, One Internal) PCI i/e Adapter
      SPONSORED

      SIIG FireWire (1394) 3-Port (Two External, One Internal) PCI i/e Adapter

      5 out of 5 stars (6)6 product ratings - SIIG FireWire (1394) 3-Port (Two External, One Internal) PCI i/e Adapter
      C $27.02
      C $21.69 shipping
      75 sold
    • SIIG Quad-Serial 4-Port / RS-232 PCIe Card Adapter w/ 16C550 UART (LB-S00114-S1)
      SPONSORED

      SIIG Quad-Serial 4-Port / RS-232 PCIe Card Adapter w/ 16C550 UART (LB-S00114-S1)

      C $41.18
      C $21.10 shipping
      192 sold
    • SIIG Dual-Serial (RS-232) Port plus Single Parallel Port PCIe Card w 16C550 UART
      SPONSORED

      SIIG Dual-Serial (RS-232) Port plus Single Parallel Port PCIe Card w 16C550 UART

      C $32.17
      C $20.84 shipping
      Only 2 left
    • New HP HDMI Port IO Option Card for HP EliteDesk 705 G4 L25757-001 L25757-002

      New HP HDMI Port IO Option Card for HP EliteDesk 705 G4 L25757-001 L25757-002

      C $21.88
      Free shipping
      or Best Offer
    • Adaptec AFW-4300C 3-Port FireWire IEEE 1394 Controller PCI Card DESKTOP PC NEW

      Adaptec AFW-4300C 3-Port FireWire IEEE 1394 Controller PCI Card DESKTOP PC NEW

      C $11.44
      239 sold
    • GIGABYTE GC-ALPINE RIDGE (Rev 2.0) Thunderbolt3 Certified PCI-E Expansion card

      GIGABYTE GC-ALPINE RIDGE (Rev 2.0) Thunderbolt3 Certified PCI-E Expansion card

      4.5 out of 5 stars (20)20 product ratings - GIGABYTE GC-ALPINE RIDGE (Rev 2.0) Thunderbolt3 Certified PCI-E Expansion card
      C $90.09
      C $9.00 shipping
      355 sold
    • HPE Gen10+ Tri-mode NVMe cables P20863-001 P20864-001 P20865-001 P20866-001

      HPE Gen10+ Tri-mode NVMe cables P20863-001 P20864-001 P20865-001 P20866-001

      C $21.80
      C $21.98 shipping
      or Best Offer
    • Intel QuickAssist QAT IQA89501G1P5 8950 Crypto Accelerator with Yottamark FP

      Intel QuickAssist QAT IQA89501G1P5 8950 Crypto Accelerator with Yottamark FP

      C $384.85
      C $44.38 shipping
    • 4 Port PCI-E to USB 3.0 HUB Expansion Card 5 Gbps Speed to pcie extension cable

      4 Port PCI-E to USB 3.0 HUB Expansion Card 5 Gbps Speed to pcie extension cable

      C $22.01
      C $2.56 shipping
    • GIGABYTE GC-MAPLE RIDGE 1.0 Thunderbolt4 Certified PCI-E Expansion card

      GIGABYTE GC-MAPLE RIDGE 1.0 Thunderbolt4 Certified PCI-E Expansion card

      5 out of 5 stars (1)1 product ratings - GIGABYTE GC-MAPLE RIDGE 1.0 Thunderbolt4 Certified PCI-E Expansion card
      C $142.87
      C $9.00 shipping
    • PCI-E to USB 3.0 2 Port PCI Express Expansion Card 19-Pin Power Connector black

      PCI-E to USB 3.0 2 Port PCI Express Expansion Card 19-Pin Power Connector black

      C $17.25
      C $2.56 shipping
    • Meinberg  PZF180PEX: Low Profile DCF77 Clock (PCI Express)

      Meinberg PZF180PEX: Low Profile DCF77 Clock (PCI Express)

      C $191.80
      C $24.46 shipping
      7 watching
    • SIX 6x CHIPAL VER009S PCIe Riser PCI Express 1x -16X Adapter PCI-e External GPU

      SIX 6x CHIPAL VER009S PCIe Riser PCI Express 1x -16X Adapter PCI-e External GPU

      C $4.59
      0 bids
      C $32.13 shipping
      Ending 21 Aug at 16:30 EDT4d 4h
    • USB3.0 PCI-E Expansion Card Adapter 7 Ports Hub Adapter External Controller

      USB3.0 PCI-E Expansion Card Adapter 7 Ports Hub Adapter External Controller

      C $36.29
      Free shipping
      Only 1 left!
    • Blackmagic UltraScope BMDPCB90A W/Black Magic Tranciever SFP $

      Blackmagic UltraScope BMDPCB90A W/Black Magic Tranciever SFP $

      C $127.50
      Was: C $170.00
      C $43.00 shipping
      or Best Offer
    • SIIG Single Parallel Port PCIe Card - Supports SPP/EPP/ECP - IEEE 1284 Standard
      SPONSORED

      SIIG Single Parallel Port PCIe Card - Supports SPP/EPP/ECP - IEEE 1284 Standard

      C $27.02
      C $20.69 shipping
      85 sold
    • SIIG FireWire 800 3-Port PCIe x1 Card Adapter, Brackets Included (NN-E38012-S3)
      SPONSORED

      SIIG FireWire 800 3-Port PCIe x1 Card Adapter, Brackets Included (NN-E38012-S3)

      C $61.78
      C $23.99 shipping
      231 sold
    • SIIG USB 3.0 7-Port External PCIe Host Adapter - Supports UASP (LB-US0514-S1)
      SPONSORED

      SIIG USB 3.0 7-Port External PCIe Host Adapter - Supports UASP (LB-US0514-S1)

      5 out of 5 stars (2)2 product ratings - SIIG USB 3.0 7-Port External PCIe Host Adapter - Supports UASP (LB-US0514-S1)
      C $47.62
      C $17.12 shipping
      71 sold
    • SIIG DP 4-Port RS422/485 PCI Adapter Card with Cables 15KVDC ESD (ID-P40311-S1)
      SPONSORED

      SIIG DP 4-Port RS422/485 PCI Adapter Card with Cables 15KVDC ESD (ID-P40311-S1)

      C $45.04
      C $17.06 shipping
    • AJA Kona 3 102058-003 PCIe Video Capture Card Apple Mac Pro |

      AJA Kona 3 102058-003 PCIe Video Capture Card Apple Mac Pro |

      C $50.00
      C $43.00 shipping
      or Best Offer
    • Inateck PCIe to USB 3.2 Gen 2 Expansion Card 20 Gbps w/ 4 USB A & 1 USB C Ports

      Inateck PCIe to USB 3.2 Gen 2 Expansion Card 20 Gbps w/ 4 USB A & 1 USB C Ports

      C $51.48
      C $16.21 shipping
      or Best Offer
      37 watching
    • MAGMA ExpressBox 3T Thunderbolt 3 to PCIe Expansion Chassis eGPU 3T-V3-eGPU Used

      MAGMA ExpressBox 3T Thunderbolt 3 to PCIe Expansion Chassis eGPU 3T-V3-eGPU Used

      C $373.29
      C $32.67 shipping
      or Best Offer
      13 watching
    • M.2 Key A+E to Dual USB2.0 Adapter Card with 5pin USB Cable

      M.2 Key A+E to Dual USB2.0 Adapter Card with 5pin USB Cable

      C $15.43
      C $3.22 shipping
    • USB 3.0 PCI-E Controller Card 2 External Port w/ Internal 19 Pin Connection

      USB 3.0 PCI-E Controller Card 2 External Port w/ Internal 19 Pin Connection

      C $18.65
      C $11.57 shipping
      629 sold
    • LSI SAS9340-8i ServeRAID M1215 12Gbps SAS HBA Non-RAID _

      LSI SAS9340-8i ServeRAID M1215 12Gbps SAS HBA Non-RAID _

      C $200.00
      C $43.00 shipping
      or Best Offer
    • SIIG Single Serial (RS-232) Port & Single Parallel Port PCIe Card, 16C550 UART
      SPONSORED

      SIIG Single Serial (RS-232) Port & Single Parallel Port PCIe Card, 16C550 UART

      C $34.74
      C $21.92 shipping
    • SIIG CyberSerial 4S 550 PCI 4-Port RS-232 Controller IO Card (JJ-P45012-S7)
      SPONSORED

      SIIG CyberSerial 4S 550 PCI 4-Port RS-232 Controller IO Card (JJ-P45012-S7)

      C $61.78
      C $16.45 shipping
    • 2 Ports USB 3.0 19/20 Pin Hub Front Panel Floppy Disk Bay Bracket Cable 3.5 inch

      2 Ports USB 3.0 19/20 Pin Hub Front Panel Floppy Disk Bay Bracket Cable 3.5 inch

      C $11.57
      C $1.27 shipping
      50 sold
    • Blackmagic Design UltraScope

      Blackmagic Design UltraScope

      C $50.00
    • Male to Female Mini PCIe mSATA Extender Cable for Wireless Card mSATA SSD, 0.2-m

      Male to Female Mini PCIe mSATA Extender Cable for Wireless Card mSATA SSD, 0.2-m

      C $7.71
      C $9.01 shipping
      or Best Offer
    • PCI-E 1X Card Slot to USB 3.0 Interface Riser Card Adapter PCIE GPU Mining Mini

      PCI-E 1X Card Slot to USB 3.0 Interface Riser Card Adapter PCIE GPU Mining Mini

      C $9.26
      C $24.63 shipping
      10 watching
    • ISA to USB ISA to U disk ISA interface to USB interface adapter card 1Pc

      ISA to USB ISA to U disk ISA interface to USB interface adapter card 1Pc

      C $48.07
      Free shipping
      26 watching
    • Startech 2 Port PCI Express 1394a FireWire Card - Part # PEX1394A2 LOW Profile

      Startech 2 Port PCI Express 1394a FireWire Card - Part # PEX1394A2 LOW Profile

      C $20.22
      C $21.95 shipping
    • PCI-E Express X1 to Dual PCI Riser Card Slot Expansion Adapter USB 3.0 +Cable

      PCI-E Express X1 to Dual PCI Riser Card Slot Expansion Adapter USB 3.0 +Cable

      C $29.83
      Was: C $31.40
      C $3.15 shipping
      or Best Offer
      184 sold
    • Sonnet Presto Solo 10GBASE-T Ethernet 1 Port PCIe Card

      Sonnet Presto Solo 10GBASE-T Ethernet 1 Port PCIe Card

      C $102.97
      C $21.70 shipping

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