Skip to main content
Hi !Hi! Sign in or registerHelp & Contact
Sell
Watchlist
My eBay
  • Summary
  • Recently Viewed
  • Bids/Offers
  • Watchlist
  • Purchase History
  • Selling
  • Saved feed
  • Saved Searches
  • Saved Sellers
  • Messages
Please sign-in to view notifications.
Loading...
eBay Home
Advanced
Copyright © 1995-2025 eBay Inc. All Rights Reserved. User Agreement, Privacy, Payments Terms of Use, Cookies and AdChoice

Serial Cards Modem Cards

breadcrumb

  • eBay
    • Electronics
    • Computers/Tablets & Networking
    • Computer Components & Parts
    • Interface/Add-On Cards
  • Electronics
  • Computers/Tablets & Networking
  • Computer Components & Parts
  • Interface/Add-On Cards
  • Modem Cards
  • Serial Cards Modem Cards

Shop by category

  • Interface/Add-On Cards
    • Modem Cards
    • Disk Controllers/RAID Cards
    • Network Cards
    • Other Interface/Add-On Cards
    • Port Expansion Cards
    • NEW I/O Crest SY-VIA6421-3S1P PCI Serial ATA And Ultra ATA Controller Card - Image 1 of 4
    • NEW I/O Crest SY-VIA6421-3S1P PCI Serial ATA And Ultra ATA Controller Card - Image 2 of 4
    • NEW I/O Crest SY-VIA6421-3S1P PCI Serial ATA And Ultra ATA Controller Card - Image 3 of 4
    • NEW I/O Crest SY-VIA6421-3S1P PCI Serial ATA And Ultra ATA Controller Card - Image 4 of 4

    NEW I/O Crest SY-VIA6421-3S1P PCI Serial ATA And Ultra ATA Controller Card

    Brand New · Syba
    S$ 33.53
    or Best Offer
    S$ 30.03 shipping
    S⁣B⁣p⁣I⁣o⁣ ⁣n⁣O⁣D⁣s⁣о⁣ ⁣C⁣D⁣ ⁣T⁣S⁣ ⁣5⁣r⁣4⁣e⁣ ⁣E⁣⁣d⁣ ⁣⁣
    • IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 - Image 1 of 4
    • IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 - Image 2 of 4
    • IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 - Image 3 of 4
    • IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 - Image 4 of 4

    IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034

    Brand New
    S$ 27.96
    S$ 29.87 shipping
    S⁣p⁣D⁣o⁣n⁣6⁣s⁣o⁣r⁣ ⁣E⁣е⁣D⁣d⁣ ⁣J⁣S⁣ ⁣⁣⁣⁣E⁣⁣C⁣⁣⁣ ⁣H⁣
    • IOCREST PCI-Express Multi I/O Controller Card PCI Express Serial Card WCH382 - Image 1 of 3
    • IOCREST PCI-Express Multi I/O Controller Card PCI Express Serial Card WCH382 - Image 2 of 3
    • IOCREST PCI-Express Multi I/O Controller Card PCI Express Serial Card WCH382 - Image 3 of 3

    IOCREST PCI-Express Multi I/O Controller Card PCI Express Serial Card WCH382

    New (Other)
    S$ 25.70
    or Best Offer
    S⁣р⁣S⁣o⁣n⁣M⁣s⁣ ⁣8⁣C⁣o⁣ ⁣r⁣Z⁣7⁣e⁣ ⁣d⁣⁣Y⁣⁣2⁣⁣ ⁣⁣X⁣R⁣⁣
    • NEW ISA 8-Bit 16550 High Speed Serial Card XT AT - HSP-1P - By Logicode 25 Pin - Image 1 of 4
    • NEW ISA 8-Bit 16550 High Speed Serial Card XT AT - HSP-1P - By Logicode 25 Pin - Image 2 of 4
    • NEW ISA 8-Bit 16550 High Speed Serial Card XT AT - HSP-1P - By Logicode 25 Pin - Image 3 of 4
    • NEW ISA 8-Bit 16550 High Speed Serial Card XT AT - HSP-1P - By Logicode 25 Pin - Image 4 of 4

    NEW ISA 8-Bit 16550 High Speed Serial Card XT AT - HSP-1P - By Logicode 25 Pin

    Brand New · SIIG
    S$ 20.91
    S$ 37.35 shipping
    ⁣N⁣⁣⁣L⁣ ⁣⁣B⁣⁣⁣⁣8⁣ ⁣1⁣⁣⁣⁣⁣⁣Q⁣ ⁣⁣⁣2⁣⁣H⁣ ⁣M⁣
  • Manhattan Mercury PCI Dual Port 2-Port Serial Card - ICC-IO-2S-PCI - Image 1 of 4

    Manhattan Mercury PCI Dual Port 2-Port Serial Card - ICC-IO-2S-PCI

    New (Other) · Manhattan
    S$ 27.96
    S$ 29.87 shipping
    Ѕ⁣M⁣p⁣B⁣o⁣ ⁣I⁣n⁣s⁣9⁣o⁣r⁣e⁣d⁣⁣ ⁣⁣U⁣⁣1⁣ ⁣4⁣D⁣ ⁣⁣A⁣K⁣ ⁣
  • Hayes High speed ESP Communications Accelerator 16Bit PC ISA Bus - Image 1 of 4

    Hayes High speed ESP Communications Accelerator 16Bit PC ISA Bus

    Brand New · Hayes
    S$ 52.19
    or Best Offer
    S$ 41.06 shipping
    0 bids
    8d 17h
    S⁣p⁣o⁣D⁣V⁣n⁣ ⁣9⁣Z⁣s⁣ ⁣o⁣r⁣е⁣W⁣S⁣ ⁣K⁣F⁣d⁣ ⁣⁣⁣⁣⁣⁣⁣⁣
  • Infiniti Solutions Harris Pca 16-Port Chp Serial 502028-01 Rev.09 Eet-5 M284 - Image 1 of 2

    Infiniti Solutions Harris Pca 16-Port Chp Serial 502028-01 Rev.09 Eet-5 M284

    Pre-Owned · Harris
    S$ 146.91
    S$ 37.50 shipping
    E⁣⁣F⁣ ⁣⁣⁣Q⁣G⁣⁣⁣⁣ ⁣⁣⁣B⁣B⁣⁣ ⁣⁣6⁣I⁣⁣⁣ ⁣⁣C⁣⁣⁣
  • IOCREST PCI Serial ATA and Ultra ATA Controller Card - Image 1 of 4

    IOCREST PCI Serial ATA and Ultra ATA Controller Card

    New (Other) · Syba
    S$ 34.96
    S$ 38.85 shipping
    ⁣⁣⁣1⁣⁣H⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣Y⁣S⁣⁣⁣ ⁣⁣⁣A⁣F⁣⁣ ⁣
  • Link Tek 2 Port PCI Express Serial Port Card RS-232 DB9 Model PCIR-SE2 - Image 1 of 4

    Link Tek 2 Port PCI Express Serial Port Card RS-232 DB9 Model PCIR-SE2

    New (Other)
    S$ 19.58
    S$ 38.90 shipping
    T⁣U⁣ ⁣K⁣⁣V⁣ ⁣5⁣⁣G⁣⁣ ⁣⁣F⁣⁣⁣T⁣⁣ ⁣⁣⁣E⁣⁣Q⁣⁣⁣⁣⁣
  • Gateway GT5220 Computer Modem RD02-D490 Conexant - Image 1 of 3

    Gateway GT5220 Computer Modem RD02-D490 Conexant

    Pre-Owned · Conexant
    S$ 12.94
    S$ 24.75 shipping
    0⁣Q⁣ ⁣⁣⁣4⁣N⁣⁣ ⁣⁣Y⁣X⁣⁣ ⁣⁣⁣⁣⁣⁣⁣F⁣⁣K⁣⁣⁣⁣ ⁣⁣
  • Conexant RD02-D490 56K PCI Data/Fax Modem Card - Image 1 of 4

    Conexant RD02-D490 56K PCI Data/Fax Modem Card

    Pre-Owned · Conexant
    S$ 13.99
    or Best Offer
    S$ 25.70 shipping
    G⁣8⁣⁣ ⁣8⁣⁣⁣3⁣⁣⁣⁣⁣⁣ ⁣N⁣K⁣⁣⁣ ⁣⁣P⁣N⁣ ⁣⁣⁣S⁣⁣4⁣
  • Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card - Image 1 of 3

    Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card

    Pre-Owned · Conexant
    S$ 12.24
    or Best Offer
    S$ 36.04 shipping
    K⁣⁣V⁣⁣⁣ ⁣⁣6⁣0⁣ ⁣6⁣3⁣ ⁣⁣Y⁣E⁣ ⁣⁣⁣S⁣Y⁣ ⁣⁣H⁣⁣ ⁣⁣⁣
  • Conexant 56K RD02-D490 PCI Fax Modem Card - Image 1 of 3

    Conexant 56K RD02-D490 PCI Fax Modem Card

    Pre-Owned · Conexant
    S$ 2.64
    or Best Offer
    S$ 35.21 shipping
    ⁣⁣⁣T⁣N⁣ ⁣M⁣Y⁣ ⁣⁣⁣⁣⁣U⁣G⁣ ⁣E⁣0⁣⁣⁣ ⁣2⁣R⁣⁣⁣ ⁣⁣⁣
  • Vintage Emachines T5088 Computer Modem RD02-D490 Conexant - Image 1 of 4

    Vintage Emachines T5088 Computer Modem RD02-D490 Conexant

    Pre-Owned · Conexant
    S$ 20.98
    S$ 42.74 shipping
    ⁣W⁣⁣⁣⁣5⁣ ⁣S⁣A⁣⁣ ⁣⁣⁣C⁣⁣8⁣ ⁣9⁣0⁣⁣⁣⁣⁣ ⁣⁣⁣O⁣⁣
  • OEM 434G Conexant RD02-D490 PCI CX11261 Soft Modem TESTED & WORKING - Image 1 of 3

    OEM 434G Conexant RD02-D490 PCI CX11261 Soft Modem TESTED & WORKING

    Pre-Owned · Conexant
    S$ 0.01
    S$ 39.11 shipping
    0 bids
    7d 5h
    2⁣⁣⁣⁣⁣⁣⁣1⁣⁣⁣⁣⁣ ⁣J⁣⁣⁣Q⁣⁣⁣⁣ ⁣8⁣P⁣ ⁣J⁣⁣⁣⁣
  • Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card - Image 1 of 4

    Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card

    Pre-Owned · Conexant
    S$ 12.58
    Was: S$ 18.24was - S$ 18.24
    S$ 29.42 shipping
    J⁣E⁣ ⁣⁣F⁣E⁣⁣ ⁣⁣⁣D⁣⁣L⁣ ⁣⁣⁣N⁣6⁣⁣⁣⁣⁣⁣ ⁣V⁣B⁣ ⁣⁣
  • Emachines T3646 Computer Modem RD02-D490 RD02-D495-009 Conexant - Image 1 of 3

    Emachines T3646 Computer Modem RD02-D490 RD02-D495-009 Conexant

    Pre-Owned · Conexant
    S$ 12.94
    S$ 24.75 shipping
    F⁣G⁣⁣⁣⁣ ⁣⁣8⁣⁣⁣C⁣⁣ ⁣1⁣⁣C⁣⁣⁣ ⁣⁣5⁣M⁣⁣ ⁣6⁣X⁣ ⁣⁣
  • Emachines T5088 Computer Modem RD02-D490 Conexant - Image 1 of 4

    Emachines T5088 Computer Modem RD02-D490 Conexant

    Pre-Owned · Conexant
    S$ 12.94
    S$ 24.75 shipping
    9⁣S⁣⁣⁣⁣ ⁣7⁣⁣⁣U⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣Y⁣7⁣ ⁣⁣7⁣⁣
  • Emachines W3507 Computer Modem RD02-D490 3652B-RD02D490 Conexant - Image 1 of 3

    Emachines W3507 Computer Modem RD02-D490 3652B-RD02D490 Conexant

    Pre-Owned · Conexant
    S$ 12.52
    S$ 24.73 shipping
    ⁣P⁣K⁣ ⁣U⁣O⁣⁣ ⁣7⁣W⁣ ⁣⁣⁣M⁣⁣⁣7⁣⁣⁣⁣ ⁣4⁣W⁣⁣⁣ ⁣⁣⁣
  • Desktop Computer Conexant RD02-D490 RD02-D495-009 Modem - Image 1 of 3

    Desktop Computer Conexant RD02-D490 RD02-D495-009 Modem

    Pre-Owned · Conexant
    S$ 12.94
    S$ 24.75 shipping
    ⁣M⁣⁣⁣⁣⁣J⁣⁣⁣ ⁣5⁣⁣D⁣⁣⁣⁣ ⁣⁣U⁣⁣5⁣ ⁣⁣D⁣U⁣ ⁣⁣⁣
  • OEM 434G Conexant RD02-D490 PCI CX11261 Soft Modem TESTED & WORKING - Image 1 of 3

    OEM 434G Conexant RD02-D490 PCI CX11261 Soft Modem TESTED & WORKING

    Pre-Owned · Conexant
    S$ 0.01
    S$ 39.11 shipping
    0 bids
    7d 5h
    1⁣1⁣ ⁣⁣⁣F⁣Y⁣⁣⁣ ⁣K⁣K⁣⁣ ⁣M⁣M⁣⁣ ⁣⁣⁣0⁣A⁣ ⁣⁣⁣N⁣⁣O⁣
  • Lot of 2 Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card - Image 1 of 4

    Lot of 2 Conexant RD02-D490 PCI RJ11 56K Data / Fax Modem Card

    Pre-Owned · Conexant
    S$ 23.89
    Was: S$ 34.65was - S$ 34.65
    S$ 349.73 shipping
    9⁣⁣X⁣⁣⁣ ⁣V⁣⁣⁣0⁣⁣⁣ ⁣⁣⁣⁣⁣A⁣N⁣ ⁣H⁣Y⁣⁣⁣ ⁣0⁣S⁣ ⁣
  • All Listings
  • Auction
  • Buy It Now
  • Best Match
  • Time: ending soonest
  • Time: newly listed
  • Price + Shipping: lowest first
  • Price + Shipping: highest first
  • Distance: nearest first
  • List View
  • Gallery View

21 results

Sort: Best Match

  • Best Match
  • Time: ending soonest
  • Time: newly listed
  • Price + Shipping: lowest first
  • Price + Shipping: highest first
  • Distance: nearest first
  • External Interfaces: Serial Cards- Selected