(LS) Simplecom EC318 PCI-e x4 to USB 3.2 Gen2x2 20Gbps USB-C Expansion Card | EC318

Simplecom EC318 PCI-e x4 to USB 3.2 Gen2x2 20Gbps USB-C Expansion Card

Designed for PCI-e 3.0 and above version, this PCI-e card is applicable to most PCs with PCI-e interface (PCI-e x4 x8 or x16) on the motherboard. It works up to 20Gbps for data transfer when connecting to USB 3.2 Gen2x2 compliant peripherals, while maintaining compatibility with existing USB peripheral devices.

EC318 is also backwards compatible with pervious USB version and supports UASP (USB Attached SCSI Protocol) for enhanced performance. This card is an ideal choice for external storage devices, HD webcam, video capture devices, and more. The card draws power from the PCI-e slot on host computer with SATA power connector for additional power.

Features

Expands your desktop PC to one USB-C 3.2 Gen 2×2 port
SuperSpeed USB 20Gbps
PCI Express 3.0 x4 lanes (also works on x8 or x16 lanes)
Compliant with PCI Express Specification 3.0
Compliant with USB 3.2 Specification Rev. 1.0, Intel xHCI Specification 1.2
Compliant with USB Attached SCSI Protocol (UASP) Specification 1.0
LED indicator for power and connection status
Includes low profile slot cover for supporting low profile cases
Plug and play, no driver required
Specifications

Bus: PCI Express 3.0 x4 lanes
Interface: 1x USB-C (USB 3.2 Gen2x2)
Controller: ASM3242 and ASM1541 USB 3.2 Gen 2×2 controllers
Speed Support: SuperSpeed USB 20Gbps/10Gbps/5Gbps, HiSpeed USB 480Mbps
Power Source: Powered by PCI-e slot, SATA Power Connector for additional power
USB Power Output: 5V3A max
Supported System: Windows 8 and above
Package Contents

1x USB 3.2 Gen 2×2 1-Port PCIe x4 Card
1x low profile bracket
Important Note

EC318 does not support DP Alt Mode or USB Power Delivery.
Windows 7 is not supported.
EC318 is designed for PCI-e 3.0 interface. In order to ge

Product Last Updated: 08/11/2026

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