Port Expansion Cards

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Interface/Add-On Cards
- Port Expansion Cards
- Disk Controllers/RAID Cards
- Modem Cards
- Network Cards
- Other Interface/Add-On Cards

383 Results

Mini PCIe to 1 Parallel 2 Serial Ports I/O Controller Card Mini PCI-e to RS232
Brand New · Unbranded
$58.81
$5.18 shipping
MikroTik RB14E | RouterBOARD 14e 4 slot miniPCIe adapter + 2 Telit Modules
Pre-Owned · MikroTik
$100.00
or Best Offer
$5.00 shipping
39G9N Serial Interface Card PCI-E HH Low Profile
Pre-Owned · Dell
$39.95
or Best Offer
Free shipping
Mini Half PCI-E to PCI-E Riser Card PCI-E 1X to PCI-E Adapter Card 4P USB2.0
Brand New · Unbranded
$19.35
$4.73 shipping
StarTech.com PCI Express to Mini PCI Express Card Adapter (PEX2MPEX)
Shop With Confidence, Buy From Newegg
Brand New · StarTech
$47.49
Was: $50.49was - US $50.49
Free shipping
Dell 0FWGJ8 FWGJ8 USB 3.0 Dual-Port PCIe x1 Low Profile Expansion Card U3N2-D
Open Box · Dell
(20)
$10.95
or Best Offer
Free shipping
Only 1 left!
Mini PCI-E to m2 Adapter Converter Expansion Card m2 Key NGFF E Interface for m2
Brand New · Unbranded
$8.50
$1.99 shipping
Mini PCI-E to PCI-E 1X Adapter Half Full Size for PCI-E to mini PCIE test card
Brand New · Unbranded
$11.90
$1.99 shipping
Express Card Mini PCI-E Version Expresscard V8.0 EXP GDC Beast PCIe PCI-E L8L5
Brand New · Unbranded
$66.00
Free shipping
5 watching
Mini PCIe to Dual PCI Bus Slot Adapter with case enclosure
Brand New · Unbranded
$130.00
or Best Offer
$7.00 shipping
31 watching
M.2 key A+E/B+M to Mini PCI-E Adapter Extension Cable WIFI Network Converter
Brand New · Unbranded
$20.99
$2.99 shipping
Mini PCIe to PCI Express 16X Riser Extender Card BTC BITCOIN EXP GDC
Brand New · Unbranded
$9.99
Free shipping
Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface for Laptop
Brand New · Unbranded
$11.10
or Best Offer
Free shipping
Mini PCI-E To USB 2.0 Converter Adapter USB Port Expansion Card for Notebook
Brand New · Unbranded
$10.99
or Best Offer
Free shipping
5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface
Brand New · Unbranded
$11.87
or Best Offer
Free shipping
Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface
Brand New · Unbranded
$11.54
or Best Offer
Free shipping
MiniPCI E TO X16 / X16 PCIe Riser Adapter Graphics Card Plus To Laptop& 50cm USB
Brand New
$8.38
$2.90 shipping
70 sold
Laptop Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface With Screws
Brand New · Unbranded
$10.94
or Best Offer
Free shipping
Intel WPE8-134_V01 Bluetooth Wi-Fi Card 105BNHMW PCIe Wireless-N 105 Single Band
Pre-Owned · Intel
(2)
$9.99
Free shipping
Mini PCIe Extension Card Half to Full Size 90 Degree Right Angle Adapter
Brand New · Unbranded
$10.93
$10.00 shipping
34 sold
Mini PCIe to Dual PCIE 2 Ports 16x pci-e Bus Slot Adapter with case enclosure
Brand New · Unbranded
$135.00
or Best Offer
$7.00 shipping
36 watching
PCI Express to Firewire 1394 card PCIe 1394A 2+1MINI-PORT
Brand New · Unbranded
$13.90
$1.99 shipping
SIIG NN-830112 FireWire 800 1394b 1394a PCI FireWire Adapter Card - Low Profile
Pre-Owned · SIIG
(1)
$19.99
or Best Offer
$5.65 shipping
Mini PCI Express to Dual USB 3.0 ports 19-pin Expansion Card Adapter
Brand New · Unbranded
$9.48
Was: $9.98was - US $9.98
or Best Offer
$5.85 shipping
53 sold
STARTECH.COM PEX2MPEX PCIE TO MINI PCIE CARD ADAPTER **FOR PARTS ONLY**
Parts Only · StarTech
$17.95
Was: $19.94was - US $19.94
Free shipping
StarTech PEX1S553LP 1 Port Low Profile PCI Express RS232 Serial Card w/16550
Open Box · StarTech
$18.00
or Best Offer
Free shipping
SIIG NN-830112 FIREWIRE HOST ADAPTER
Pre-Owned · SIIG
(1)
$24.99
or Best Offer
Free shipping
Mini PCI Express to ExpressCard Adapter mini PCIe to Express Card 34 54 mm Slot
Brand New · Unbranded
$31.95
$15.00 shipping
13 watching
Plastic + Metal Mini PCI-E To USB 2.0 Converter Adapter Card Expansion Card g
Brand New · Unbranded
$10.99
or Best Offer
Free shipping
Laptop Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface With Screws
Brand New · Unbranded
$12.09
or Best Offer
Free shipping
5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface
Brand New · Unbranded
$12.09
or Best Offer
Free shipping
5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface
Brand New · Unbranded
$10.99
Free shipping
PE4C-PM060A V3.0 –PCI-E to mPCI-e adapter
Brand New
$89.00
$4.51 shipping
'EXP GDC BEAST' EXTERNAL eGPU for Laptops Notebooks MacBook Pro iMac WITHOUT TB
Pre-Owned
$161.88
$21.68 shipping
Startech.Com, RS232 to RS422/485 Serial Port Converter....................LSS-25
Pre-Owned · StarTech
$10.00
$4.52 shipping
Inateck KTU3FR-2021 PCI Express x1 USB 3.0 Expansion Card -New In Box
Pre-Owned · Inateck
(5)
$19.95
or Best Offer
$6.20 shipping
Kvaser Mini PCI Express HS highly-integrated CAN add-on board
Open Box
$100.00
Free shipping
Mini PCI-E to PCI-E Express 1X Extension Cord Adapter Card with USB Riser Card
Brand New
$40.10
Free shipping
5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface
Brand New · Unbranded
$10.99
or Best Offer
Free shipping
1pc 20M 2.4G PCI-E Desktop Remote Control Wireless Restart Switch Turn On/OFF PC
Brand New · Unbranded
$18.99
or Best Offer
$9.99 shipping
03T8168 Lenovo PCIe WIFI Riser SFF Card
Pre-Owned · Lenovo
$20.95
or Best Offer
Free shipping
Mini PCIE PCI Express to Dual USB 3.0 ports 19pin 20pin Expansion Adapter Card
Brand New · Unbranded
$13.38
Was: $20.59was - US $20.59
Free shipping
Mini PCI-e PCI Express to SATA Adapter Converter Card
Brand New · Unbranded
$8.99
$1.99 shipping
StarTech 3 Port 2b 1a 1394 Mini PCI Express FireWire Card Adapter - 1 x 6-pin
Female IEEE 1394a FireWire External (mpex1394b3)
Brand New · StarTech
$98.76
Free shipping
Rosewill PCIe FireWire 1394a Card 2+1 Ports RC-504 Sealed Box. Never Opened
Brand New · Rosewill
(6)
$10.00
or Best Offer
$8.71 shipping
Mini PCI-E WWAN/LTE Card to Motherboard USB 9-pin Adapter Mini PCIE 3G/4G Net...
Brand New
$28.00
Free shipping
4G 5G M.2 to Pcie Adapter NGFF to Mini Pci-E Adapter Board with SIM Card Slot
Brand New · Unbranded
$7.99
or Best Offer
$1.99 shipping
PPA INT’l 2-Port Pci-E USB 3.0 Express Card USB 3.0 Hub Controller Adapter
Pre-Owned
$9.00
$6.20 shipping
Dell 0MX846 Low Profile 802.11n PCI-e Wireless Card 0GW073
Excellent - Refurbished · Dell
$9.99
Free shipping
eBay Refurbished
Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface for Laptop
Brand New · Unbranded
$10.99
or Best Offer
Free shipping
Mini PCI-E to USB Adapter PCIE to 19Pin SATA Dual USB 3.0 Expansion Adapter Card
Brand New · Unbranded
$12.21
Was: $12.99was - US $12.99
or Best Offer
$2.49 shipping
StarTech PCI Express to Mini PCI Express Card Adapter - 1 x Mini PCI Express
(pex2mpex)
Brand New · StarTech
$56.22
Free shipping
Est. delivery Sat, May 31
Dell 0FWGJ8 FWGJ8 Low Profile Expansion Card
Pre-Owned · Dell
(20)
$6.00
or Best Offer
Trending at $10.90
$6.20 shipping
V8.0 EXP GDC Laptop External PCIE Graphics Card Mini PCI-E AC774 S1Q1
Pre-Owned · Unbranded
$44.00
or Best Offer
$4.71 shipping
Dell 2-port isolated Card bus 2.0B Mini PCI Express Card N8V21
Brand New · Dell
$30.99
or Best Offer
Free shipping
Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface C
Brand New · Unbranded
$10.99
Free shipping
Mini PCI-e PCI Express to SATA Adapter Converter Card
Brand New · Unbranded
$2.72
Was: $2.86was - US $2.86
or Best Offer
$5.85 shipping
96 sold
HP Only Mini PCI-E To PCI-E Adapter - MP2W
Brand New · HP
$19.99
or Best Offer
Free shipping
Plastic + Metal Mini PCI-E To USB 2.0 Converter Adapter Card Expansion Card
Brand New · Unbranded
$10.99
or Best Offer
Free shipping
Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface D
Brand New · Unbranded
$11.54
or Best Offer
Free shipping

Best Selling

See All

Lenovo Pcie16 Riser Card (01AJ940)
(8)
$10.78 New
Startech PEXUSB3S7 7-Port PCI Express Interface Cards
$77.49 New
$29.75 Used
GIGABYTE ‎GC-MAPLE RIDGE PCle Card
(2)
$92.90 New
$70.00 Used
Protronix 4-Port SuperSpeed USB 3.0 PCI-Express Controller Card
(52)
$11.99 New
ASUS USB4 PCIE GEN4 CARD USB-C DisplayPort 1.4 PCIe 4.0 JP
$121.02 New
HP 705 Flex IO Card (3TK75AA)
(7)
$10.99 New
$8.00 Used
MSI Thunderbolt 4 PCIe Expansi
(1)
$69.00 New
QNAP QM2-2P10G1TB 2x NVMe M.2 SSD & 1x 10GbE Port Expansion Card
$204.99 New

Top Rated

See All

ASUS Hyper M.2 X16 PCIe 3.0 X4 Expansion Card V2 for Intel VROC and AMD Ryzen
(14)

100% agree - Would recommend
$50.00 New
$26.50 Used
Premier Technologies Ub-3204 X-media 4port USB 3.0 PCIe Ctlr SuperSpeed
(12)

100% agree - Would recommend
$17.99 New
Sonnet Allegro USB 3.0 PCIe 4port Mac and Windows Compatible
(9)

100% agree - Would recommend
$54.00 New
$40.00 Used
Lenovo Pcie16 Riser Card (01AJ940)
(8)

100% agree - Would recommend
$10.78 New
4 Ports Port 5gbps USB 3.0 Pci-e PCI Express Card Adapter for XP Vista Win 7 8
(31)

100% agree - Would recommend
$111.99 New
PCIe Pci-e FireWire IEEE 1394 2 1 3 Port Controller Card for Desktop PC
(30)

93% agree - Would recommend
$12.99 New
Inateck KTU3FR-4P 4 Port USB 3.0 Expansion Card
(30)

100% agree - Would recommend
$13.49 New
Syba 3-Port Firewire 1394B & 1394A PCIe 1.1 x1 Card TI XIO2213B Chipset SY-PEX30016
(23)

94% agree - Would recommend
$28.72 New
$24.95 Used

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Port Expansion Cards

Shop by Category

383 Results

Mini PCIe to 1 Parallel 2 Serial Ports I/O Controller Card Mini PCI-e to RS232

MikroTik RB14E | RouterBOARD 14e 4 slot miniPCIe adapter + 2 Telit Modules

39G9N Serial Interface Card PCI-E HH Low Profile

Mini Half PCI-E to PCI-E Riser Card PCI-E 1X to PCI-E Adapter Card 4P USB2.0

StarTech.com PCI Express to Mini PCI Express Card Adapter (PEX2MPEX)

Dell 0FWGJ8 FWGJ8 USB 3.0 Dual-Port PCIe x1 Low Profile Expansion Card U3N2-D

Mini PCI-E to m2 Adapter Converter Expansion Card m2 Key NGFF E Interface for m2

Mini PCI-E to PCI-E 1X Adapter Half Full Size for PCI-E to mini PCIE test card

Express Card Mini PCI-E Version Expresscard V8.0 EXP GDC Beast PCIe PCI-E L8L5

Mini PCIe to Dual PCI Bus Slot Adapter with case enclosure

M.2 key A+E/B+M to Mini PCI-E Adapter Extension Cable WIFI Network Converter

Mini PCIe to PCI Express 16X Riser Extender Card BTC BITCOIN EXP GDC

Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface for Laptop

Mini PCI-E To USB 2.0 Converter Adapter USB Port Expansion Card for Notebook

5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface

Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface

MiniPCI E TO X16 / X16 PCIe Riser Adapter Graphics Card Plus To Laptop& 50cm USB

Laptop Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface With Screws

Intel WPE8-134_V01 Bluetooth Wi-Fi Card 105BNHMW PCIe Wireless-N 105 Single Band

Mini PCIe Extension Card Half to Full Size 90 Degree Right Angle Adapter

Mini PCIe to Dual PCIE 2 Ports 16x pci-e Bus Slot Adapter with case enclosure

PCI Express to Firewire 1394 card PCIe 1394A 2+1MINI-PORT

SIIG NN-830112 FireWire 800 1394b 1394a PCI FireWire Adapter Card - Low Profile

Mini PCI Express to Dual USB 3.0 ports 19-pin Expansion Card Adapter

STARTECH.COM PEX2MPEX PCIE TO MINI PCIE CARD ADAPTER **FOR PARTS ONLY**

StarTech PEX1S553LP 1 Port Low Profile PCI Express RS232 Serial Card w/16550

SIIG NN-830112 FIREWIRE HOST ADAPTER

Mini PCI Express to ExpressCard Adapter mini PCIe to Express Card 34 54 mm Slot

Plastic + Metal Mini PCI-E To USB 2.0 Converter Adapter Card Expansion Card g

Laptop Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface With Screws

5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface

5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface

PE4C-PM060A V3.0 –PCI-E to mPCI-e adapter

'EXP GDC BEAST' EXTERNAL eGPU for Laptops Notebooks MacBook Pro iMac WITHOUT TB

Startech.Com, RS232 to RS422/485 Serial Port Converter....................LSS-25

Inateck KTU3FR-2021 PCI Express x1 USB 3.0 Expansion Card -New In Box

Kvaser Mini PCI Express HS highly-integrated CAN add-on board

Mini PCI-E to PCI-E Express 1X Extension Cord Adapter Card with USB Riser Card

5V Mini PCI-E To USB 2.0 Converter Expansion Adapter Card USB A Female Interface

1pc 20M 2.4G PCI-E Desktop Remote Control Wireless Restart Switch Turn On/OFF PC

03T8168 Lenovo PCIe WIFI Riser SFF Card

Mini PCIE PCI Express to Dual USB 3.0 ports 19pin 20pin Expansion Adapter Card

Mini PCI-e PCI Express to SATA Adapter Converter Card

StarTech 3 Port 2b 1a 1394 Mini PCI Express FireWire Card Adapter - 1 x 6-pin

Rosewill PCIe FireWire 1394a Card 2+1 Ports RC-504 Sealed Box. Never Opened

Mini PCI-E WWAN/LTE Card to Motherboard USB 9-pin Adapter Mini PCIE 3G/4G Net...

4G 5G M.2 to Pcie Adapter NGFF to Mini Pci-E Adapter Board with SIM Card Slot

PPA INT’l 2-Port Pci-E USB 3.0 Express Card USB 3.0 Hub Controller Adapter

Dell 0MX846 Low Profile 802.11n PCI-e Wireless Card 0GW073

Mini PCI-e to USB2.0 Adapter Card PCIe Extended USB Interface for Laptop

Mini PCI-E to USB Adapter PCIE to 19Pin SATA Dual USB 3.0 Expansion Adapter Card

StarTech PCI Express to Mini PCI Express Card Adapter - 1 x Mini PCI Express

Dell 0FWGJ8 FWGJ8 Low Profile Expansion Card

V8.0 EXP GDC Laptop External PCIE Graphics Card Mini PCI-E AC774 S1Q1

Dell 2-port isolated Card bus 2.0B Mini PCI Express Card N8V21

Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface C

Mini PCI-e PCI Express to SATA Adapter Converter Card

HP Only Mini PCI-E To PCI-E Adapter - MP2W

Plastic + Metal Mini PCI-E To USB 2.0 Converter Adapter Card Expansion Card

Notebook Mini PCI-E To USB 2.0 Converter Adapter Card Expansion USB Interface D

Best Selling

Lenovo Pcie16 Riser Card (01AJ940)

Startech PEXUSB3S7 7-Port PCI Express Interface Cards

GIGABYTE ‎GC-MAPLE RIDGE PCle Card

Protronix 4-Port SuperSpeed USB 3.0 PCI-Express Controller Card

ASUS USB4 PCIE GEN4 CARD USB-C DisplayPort 1.4 PCIe 4.0 JP

HP 705 Flex IO Card (3TK75AA)

MSI Thunderbolt 4 PCIe Expansi

STARTECH.COM PEX2MPEX PCIE TO MINI PCIE CARD ADAPTER FOR PARTS ONLY