JEYI M.2 NVMe to PCIe 4.0 x1 Adapter Card – NVMe Expansion for Desktop PCs
The JEYI M.2 NVMe to PCI Express 4.0 x1 adapter card makes it possible to install a high-speed NVMe SSD in desktop systems that lack an M.2 slot or have no free M.2 connectors available. This solution is ideal for upgrading older PCs or expanding storage capacity by using an available PCIe slot, allowing NVMe drives to be used for operating systems, applications, games, or high-speed data storage depending on BIOS and system support

Operating on a PCIe Gen4 x1 interface, the adapter supports bandwidths of up to 16Gbps, significantly improving responsiveness and overall system performance compared to traditional SATA solutions. It is fully backward compatible with PCIe Gen3, Gen2, and Gen1 motherboards, making it suitable for a wide range of desktop platforms while performance depends on the PCIe generation and installed SSD

Who This Adapter Is For
This adapter is designed for desktop PCs with available PCIe slots, especially older systems without native M.2 support or systems that already use all onboard M.2 connectors. It enables users to add an extra NVMe SSD as a high-speed storage drive and, on supported systems, even as a boot drive, depending on motherboard firmware capabilities

Performance and Compatibility
Using a PCIe 4.0 x1 lane allows data transfer speeds of up to 16Gbps, providing a noticeable performance upgrade for many systems. The adapter can be installed in wider PCIe slots such as x4, x8, or x16, operating at x1 speed as designed. Actual read and write speeds depend on the SSD model, motherboard, BIOS support, and system configuration

Supported M.2 Sizes
The adapter supports multiple M.2 NVMe form factors including 2280, 2260, 2242, and 2230, ensuring compatibility with a wide variety of NVMe SSDs. Secure mounting points and screws are included to keep the drive firmly installed during operation

Multi-Layer Protection and Stability
Built with a multi-layer PCB design, the adapter integrates protection features such as overcurrent protection, overvoltage protection, short-circuit protection, EMI shielding, and thermal assistance. These safeguards help ensure stable data transmission and protect the NVMe SSD from electrical interference and overheating during sustained workloads

High-quality components including a built-in capacitor and gold-plated connector enhance signal reliability and long-term durability, while the ventilated PCB structure assists in effective heat dissipation under continuous operation

Low-Profile and Server Compatibility
A mounting bracket is included for secure installation in standard and low-profile cases, making the adapter suitable for compact desktops and 2U server enclosures. This ensures stable positioning and clean internal cable management even in space-constrained environments

Operating System Support
The adapter supports Windows 10 and Windows 11 with native NVMe recognition and plug-and-play installation in most cases. It is also compatible with various Linux distributions and server operating systems. Older systems may require BIOS updates or additional NVMe drivers depending on platform limitations

Package Contents
- M.2 NVMe to PCIe x1 Adapter Card
- Mounting Bracket
- Case Screw
- SSD Mounting Screw
- Screwdriver