
Best selling Controller cards
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Ugreen PCIe 3.0 x4 to M.2 M-Key + M.2 B-Key Adapter
UGREEN PCIe 3.0 x4 to M.2 M-Key + M.2 B-Key Adapter
Enhance your computer's performance. With the UGREEN CM302 adapter, you can use M.2 SSDs in devices with PCIe 3.0 slots. Enjoy fast transfers of up to 32 Gbit/s, play dynamic games without interruptions, and forget about system crashes. The product is characterized by its wide compatibility. It also features an additional SATA input and an LED display. The set includes all the tools required for the installation of the adapter.
Do you feel that your computer is not efficient enough? Now you can change that! With the help of the UGREEN adapter, you can easily install a high-speed M.2 SSD, allowing you to achieve transfer rates of up to 32 Gbps, meaning that 1 GB of files can be transferred in just about 7 seconds! You will also start your games faster.

2. Sonnet McFiver PCIe Card
Multifunction adapter card with two M.2 NVMe SSD slots, 10 Gb Ethernet, and two 10 Gbps USB-C ports, compatible with Mac, Windows, and Linux. Do you want to add SSD storage, ultra-high-speed Ethernet connectivity, or powerful USB-C ports to your setup? Or all three? Even with computers that have multiple expansion card slots, it may not be possible to install three adapter cards to obtain the necessary interfaces. Sonnet's engineers have developed a truly unique solution - the McFiver PCIe card. This professional multifunction adapter, compatible with Mac, Windows, and Linux, offers five interfaces. It is the only adapter card with two M.2 NVMe SSD slots, an RJ45 10 Gb Ethernet port, and two 10 Gbps USB-C ports, all fitting on a standard full-height PCIe card.

3. ASUS Thunderbolt EX 4
ASUS Thunderbolt EX 4 is a Thunderbolt 4 expansion card that offers 40 Gbps bidirectional bandwidth, USB4 device compatibility, and DisplayPort 1.4. It supports up to five Thunderbolt devices in a daisy chain and allows for laptop charging of up to 100 watts via USB-C.

4. Conceptronic EMRICK M.2 NVMe SSD PCIe Adapter
This M.2 NVMe SSD PCIe adapter connects directly to the motherboard and features ultra-fast PCIe 3.0 X4 lanes that transfer bandwidth of up to 32 GT/s. It also supports a wide range of M.2 Key M SSD drive sizes. This adapter enhances system performance and optimizes the efficiency of office and entertainment devices.

5. StarTech .com 2-Port 10Gbps USB-A & USB-C PCIe Card Adapter
With this USB 3.2 Gen 2 card, you can add a USB-C port and a USB-A port to your computer via a PCI Express slot. It allows you to expand your current system by adding two USB 3.2 Gen 2 ports to your computer, providing access to data transfer speeds of up to 10 Gbit/s per port. The USB 3.1 Gen 2 (also known as USB 3.2 Gen 2) PCIe add-in card supports multiple inputs and delivers optimal bandwidth even with connected devices operating at different speeds. Additionally, by adding a USB-C and a USB-A port to your PC, you can easily connect older, modern, and future USB devices, regardless of the USB connector type.

6. HP Type-C USB 3.1 Gen2 Port w/
The HP Type-C USB 3.1 Gen2 port controller card offers a powerful solution for expanding connectivity for select HP Mini Desktop Workstations. With a maximum power output of 100 watts, this card not only allows for device connections but also enables simultaneous battery charging. Support for super-fast transfer speeds of up to 10 Gbps ensures efficient data transmission that meets the demands of modern business applications. This interface card is specifically designed for the HP EliteDesk 800 G6, 805 G6, ProDesk 400 G6, and 405 G6, providing an easy way to enhance your workstation's functionality. The integration of USB Power Delivery and DisplayPort 1.4 allows for versatile use, while compatibility with various HP models ensures flexible adaptation to different work environments.
- Supports USB 3.1 Gen2 with transfer speeds of up to 10 Gbps
- Provides 100 watts of Power Delivery for charging devices
- Compatible with select HP Mini Desktop Workstations
- Integrates DisplayPort 1.4 for enhanced video output
- Enables the use of HP Sleep and Charge functionality.

7. Delock PCI Express card 90046 2x serial / RS232
The Delock PCI Express card expands the PC with two external serial ports. Various devices, such as scanners, protocol converters, IoT devices, etc., can be connected to the card.
Low Profile Form Factor
With the included low profile brackets, the PCI Express card can also be installed in a mini-PC.
Specifications
- Connections:
external: 2 x Serial RS-232 DB9 connectors
internal: 1 x PCI Express x1, V2.0
- Chipset: ASIX AX99100
- Compatible with 16C950 UART
- Supports Active State Power Management (ASPM)
- Supports Direct Memory Access (DMA)
- Data transfer rate up to 921.6 Kbps
- FIFO: 256 Bytes
- Data bits: 5, 6, 7, 8, 9
- Stop bits: 1, 1.5, 2
- Parity bit: even, odd, none, mark, space
- Flow control: none, hardware RTS/CTS, software XON/XOFF
- Operating temperature: 0 °C ~ 70 °C
System Requirements
- Windows 8.1/8.1-64/10/10-64/11
- PC with a free PCI Express slot
Package Contents
- PCI Express card
- 2 x Low Profile brackets
- Driver CD
- User manual.

Delock PCI Express card 90046 2x serial / RS232
8. Digitus PCIe Card Firewire 1394a 3+1 Port
With this IEEE 1394a / Firewire Express Card, you can quickly and easily expand your PC system with three IEEE 1394 ports. It supports data transfer rates of 100/200/400 Mbps and can be installed in any available PCI slot with any lane width, thanks to its integrated hot swap and plug-and-play functionality. It features 3 external ports and one internal port.

9. Delock PCI Express Card USB 3.2 Gen2x2 - 2x USB-C Dual Channel
The PCI Express card from Delock expands the PC with two external USB 3.2 ports. Various USB devices, such as docking stations, card readers, external enclosures, etc., can be connected to the card.
Dual Channel
The card features two ASM3242 chipsets, one for each USB Type-C™ port. This ensures a high data transfer rate of 20 Gbps across all ports when they are used simultaneously.

10. Conceptronic PCI Express Card
This 4-port SATA PCIe adapter uses a combination of Asmedia high-performance chips (ASM1061+ASM1093) to add 4 SATA ports. Each Serial ATA port supports transfer speeds up to 6Gb/s and is backward compatible with legacy SATA 1.5Gb/s or 3Gb/s drives. In addition, the card supports mode switching and can be effortlessly switched between IDE and AHCI systems.
