Skip to main content
Take a tax holiday. Take advantage of limited-time, tax-free savings on select products in certain states. Learn More>

BEST SELLERS

In Add-On Cards

Our most popular products, based on sales and updated frequently.
01
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)
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)
  • Type: Controller Card
  • External USB Ports: 7x USB Ports
  • Internal USB Ports: 7x USB Ports
  • External Ports: 7x USB Ports
  • Model #: PCET7U3-NEC
  • Item #: 9SIA6V8FTU6700
  • Return Policy: View Return Policy
Limited Time Offer
$27.99
Free Shipping

Has an interesting mini driver disk. I could not understand the readme that came with it, but the drivers for Win 11 Pro were simple to install. They are all from 2012. Windows Plug+Play uses driver from Jan. 2023, but is replaced. I have not seen them removed yet. Renesas installs USB 2.0 Hub, USB 3.0 Host Controller, USB 3.0 Hub, USB 3.0 Root Hub. There is also a green power light on the nearest edge of the card.

02
DERAPID RTL8125 2.5Gbps PCI Express Network Card  PCIe x1 to RJ45 Ethernet Adapter, 2.5G Base-T Gigabit LAN, Gaming NIC for Desktop PC NAS
DERAPID RTL8125 2.5Gbps PCI Express Network Card PCIe x1 to RJ45 Ethernet Adapter, 2.5G Base-T Gigabit LAN, Gaming NIC for Desktop PC NAS
  • Brand: DERAPID
  • Series: RJ45 Network Card
  • Model: RTL8125
  • Type: PCI Express to Ethernet Port Card
  • Model #: 2.5G PCI-E to RJ45
  • Item #: 9SIARJ2K082605
  • Return Policy: View Return Policy
Save 20%
Limited Time Offer
$15.89
$19.99
Free Shipping

Easy to install. Works on a pciE 1.1 slot and gives 2.5Gigabit connection. Actual range was in the 1.7500 but still fine tuning my home fiber network.

03
4 Port USB 3.2 Type C PCIe Expansion Card Adapter 5Gbps, RIITOP PCI-e Express to USB Type C 4 Port Card for Desktop PC Support Windows 11/10/8/7/XP/Vista, Self-Powered Supply
4 Port USB 3.2 Type C PCIe Expansion Card Adapter 5Gbps, RIITOP PCI-e Express to USB Type C 4 Port Card for Desktop PC Support Windows 11/10/8/7/XP/Vista, Self-Powered Supply
  • Type: PCI Express Controller Card
  • External USB Ports: 4x USB Type C
  • Model #: PCE1XT4C-5G
  • Item #: 9SIARE9KF14314
  • Return Policy: View Return Policy
Limited Time Offer
$27.99
Free Shipping

My new motherboard had only 4 SATA slots, so I ran out during the initial build (with zero NVME drives). So, I can now use my two optical drives (DVD and BluRay), which I know are passe, but I like having them hooked up! Board works great, no issues.

Maybe a Necessity if You Have a USB-C on Front Panel Header because no USB 3.2 GEN1 connector on motherboard. 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

06
PCIE to USB 3.2 Gen 2 Expansion Adapter Card 10Gbps, RIITOP PCI-e Express to USB A and USB C Controller Card with Internal Type-E and 19/20pin Header for Front Panel Mount
PCIE to USB 3.2 Gen 2 Expansion Adapter Card 10Gbps, RIITOP PCI-e Express to USB A and USB C Controller Card with Internal Type-E and 19/20pin Header for Front Panel Mount
  • Type: Controller Card
  • Model #: PCE32-ACE20P
  • Item #: 9SIARE9K2T1402
  • Return Policy: View Return Policy
Save 20%
Limited Time Offer
$39.99
$49.99
Free Shipping

Easy install, works as expected.

Build quality looks good. Works with every drive tried. Will work as a single drive adapter as long as a compatible 4X slot is available on an older motherboard.

It keeps the sdds cool and easy to install. A thick plate covers the sdds to disapate heat.

10
GIGABYTE THUNDERBOLTS 5 Expansion Card - Dual Thunderbolt™ 5 USB Type-C Ports, 120 Gbps Ultra Fast Data Transfer, DisplayPort™ 2.1 support, PCIe 4.0 x4, USB4®, Black
GIGABYTE THUNDERBOLTS 5 Expansion Card - Dual Thunderbolt™ 5 USB Type-C Ports, 120 Gbps Ultra Fast Data Transfer, DisplayPort™ 2.1 support, PCIe 4.0 x4, USB4®, Black
  • Brand: GIGABYTE
  • Type: PCI Express to Thunderbolt
  • External USB Ports: 4x PCIe 4.0
  • External 1394 Ports: 5x 1394 Ports
  • Model #: Thunderbolts 5
  • Item #: 17Z-0037-00022
  • Return Policy: 30-Day Return Policy
$148.99
$149.99
Free Shipping
11
SYBA SI-PEX40110 M.2 M-Key NVMe PCI-e to PCI-e x4 Converter Card
SYBA SI-PEX40110 M.2 M-Key NVMe PCI-e to PCI-e x4 Converter Card
  • Type: M.2 PCI-e to PCI-e 3.0
  • Operating Systems Supported: Windows 2000/XP/2003/2008/Vista/7/8/8.1/10 , Linux, Mac OS
  • Weight: 0.4
  • Package Contents: 1x M.2 PCI-e To PCI-e 3.0 x4 Adapter 1x User Manual 2x Screws (M.2)
  • Model #: SI-PEX40110
  • Item #: N82E16815124167
  • Return Policy: 30-Day Return Policy
Save 17%
$13.99
$16.99
Free Shipping

Works perfectly put of the box Best pricing I could find

12
M.2 NVMe SSD to PCIe 5.0 Adapter, RIITOP NVMe SSD to PCIe 5.0 x16/x8/x4 Adapter Card with Aluminum Heatsink, Easy Install, Supports 2230/2242/2260/2280, Not Compatible with SATA or PCIe x1
M.2 NVMe SSD to PCIe 5.0 Adapter, RIITOP NVMe SSD to PCIe 5.0 x16/x8/x4 Adapter Card with Aluminum Heatsink, Easy Install, Supports 2230/2242/2260/2280, Not Compatible with SATA or PCIe x1
  • Brand: RIITOP
  • Model: NVTPCE16X (RIITOP NVMe Adapter M.2 PCIe SSD to PCI-e x4/x8/x16 Converter Card with Heat Sink for M.2 (M Key) NVMe SSD 2280/2260/2242/2230)
  • Type: Controller Card
  • External USB Ports: PCI Express
  • Model #: NVTPCE16X
  • Item #: 9SIARE9C1A5462
  • Return Policy: View Return Policy
Limited Time Offer
$19.99
Free Shipping

I was a little worried that I wouldn't be able to install the correct drivers as I don't have a disc drive on this pc. but windows was able to get it done without me doing anything.

16
Asus HYPER M.2 X16 GEN 4 CARD Hyper M.2 x16 Gen 4 Card (PCIe 4.0/3.0)
Asus HYPER M.2 X16 GEN 4 CARD Hyper M.2 x16 Gen 4 Card (PCIe 4.0/3.0)
  • Type: PCI Express to M.2 Card
  • External Ports: 4 x M.2 slots (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0/3.0)* * Supports PCIe M.2 storage devices only.
  • Internal Ports: PCIe 4.0/3.0 x16 interface, compatible with PCIe x8 and x16 slots, support data transfer rates up to 256 Gbps.
  • Specifications: 1 x M.2 FAN Power Switch 4 x M.2 access LEDs
  • Model #: HYPER M.2 X16 GEN 4
  • Item #: N82E16815293045
  • Return Policy: 30-Day Return Policy
$71.99
$74.99
Free Shipping

Inexpensive. Gen4 NVMe or Gen3 if you need higher capacity at a lower price. Leave the top cover off and use NVMe with built-in heat-sinks if you like (as I did). Up to 12GB/s Write and almost 17GB/s Read speed with just 3 NVMe Gen4 (for now), 4th drive to be added soon and performance will therefore improve. And YES, that's Gigabyte per Second!!! While AM4 (AM5?) and other platforms wait for Gen5 NVMe... even THAT won't be this fast, expansive or especially as inexpensive as THIS solution. 4TB of this performance level isn't even $900. What those platforms are waiting for in 2 more years from now, I'm already enjoying over a year ago.. and will continue to for at least another 5+.

18
ASUS Hyper M.2 x16 Gen5 Card (PCIe 5.0/4.0) supports four NVMe M.2 (2242/2260/2280/22110) devices up to 512 Gbps for AMD and Intel® platform RAID functions.
ASUS Hyper M.2 x16 Gen5 Card (PCIe 5.0/4.0) supports four NVMe M.2 (2242/2260/2280/22110) devices up to 512 Gbps for AMD and Intel® platform RAID functions.
  • Type: PCI Express to M.2 Card
  • Compatibility: Compatible Models: Visit www.asus.com for latest compatible model lists. Maximum numbers of M.2 SSD support will vary, depending on different CPU specs and PCIe bifurcation settings in different ASUS motherboards. Please see the FAQ link for further information: https://www.asus.com/support/FAQ/ 1037507
  • Specifications: Interface: PCIe 5.0 x16 interface, support data transfer rates up to 512 Gbps. External Connectors: 4 x M.2 slots (Key M), type 2242/2260/2280/22110 (supports PCIe 5.0)* * Supports PCIe M.2 storage devices only. LED & Switch: 1 x M.2 FAN Power Switch 4 x M.2 access LEDs Thermal Solution : Active fan with heatsink, support fan control from MB chassis fan header Dimensions: 29(L)*12.2(W) *1.5(H)cm Compatible Models: Visit www.asus.com for latest compatible model...
  • Model #: HYPER M.2 X16 GEN5 CARD
  • Item #: N82E16815293050
  • Return Policy: 30-Day Return Policy
$84.99
Free Shipping
19
ESTONE PCIE USB 3.2 Gen 2 Card 5 Ports(3X USB C - 2X USB A), PCI Expree to USB Expansion Card Super Speed 10Gbps PCI-e USB3.2 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista
ESTONE PCIE USB 3.2 Gen 2 Card 5 Ports(3X USB C - 2X USB A), PCI Expree to USB Expansion Card Super Speed 10Gbps PCI-e USB3.2 Hub Controller Adapter for Windows 11/10/8/7/XP/Vista
  • Type: PCI to USB Card
  • External USB Ports: 5x USB Ports
  • Standard: USB 3.2
  • Data Transfer Rate: Up to 10 Gbps
  • Model #: E-PCIE22A3C3.2-1
  • Item #: 9SIAE04KBC7105
  • Return Policy: View Return Policy
Limited Time Offer
$42.99
Free Shipping

plenty of ports. works well and didn't have to install drivers. windows did all the work. well built.

20
GIGABYTE GC-MAPLE RIDGE Thunderbolt 4 PCI-Ex4 add on Card USB Type-C DisplayPort
GIGABYTE GC-MAPLE RIDGE Thunderbolt 4 PCI-Ex4 add on Card USB Type-C DisplayPort
  • Type: PCI Express to Thunderbolt
  • Model #: B-GIGABYTE GC-MAPLE RIDGE
  • Item #: 9SIBTK0K9D2933
  • Return Policy: View Return Policy
$253.95
Free Shipping

- Ultimately works and does what it claims to do - Depending on your GPU displayPort I/O, can upgrade fully to Thunderbolt DP