PCIe expansion adapter icybox IB-PCI2019-M2 1x M.2 to 4x PCIe x4

The icybox IB-PCI2019-M2 is a PCIe expansion adapter that converts a single M.2 PCIe slot into four independent PCIe x4 slots. It enables installation of multiple PCIe x4 devices using one M.2 connection on a compatible motherboard. The adapter is intended for systems that support PCIe lane bifurcation or have built-in M.2-to-PCIe expansion capabilities, allowing users to expand storage, networking, or other peripheral functionality without replacing the mainboard.

Advantages

The adapter provides a practical way to increase the number of available PCIe x4 interfaces from one M.2 slot while maintaining compact form factor and straightforward installation. It supports multiple device types that use PCIe x4 links and reduces the need for additional full-size PCIe slots. The design emphasizes compatibility with motherboards that implement bifurcation and with M.2 connectors that expose PCIe lanes, allowing flexible use in small-form-factor systems and workstations.

Suitable for

• Adding multiple NVMe SSDs via a single M.2 PCIe slot
• Installing x4 network interface cards (NICs) or 10GbE adapters
• Expanding PCIe connectivity in compact or limited-expansion systems
• Laboratory or test environments requiring multiple PCIe x4 devices

Key specifications

• Interface conversion: one M.2 PCIe slot to four PCIe x4 slots
• Supported PCIe lanes: PCIe x4 per output slot (dependent on host bifurcation support)
• Form factor: low-profile adapter card suitable for systems with M.2 PCIe connectors
• Compatibility requirement: motherboard support for PCIe lane bifurcation or M.2-to-PCIe expansion
• Typical device types: NVMe SSDs, PCIe x4 network cards, and other x4 PCIe add-in cards

How to use

Install the adapter by inserting it into the system's M.2 PCIe socket according to the motherboard manual and secure it as required. Populate the four PCIe x4 slots with compatible cards, taking care to follow proper anti-static procedures. Configure the host system BIOS/UEFI to enable PCIe lane bifurcation if necessary; set the bifurcation mode compatible with four x4 outputs. After hardware installation and BIOS configuration, boot the system and verify that connected devices are detected by the operating system and that drivers are installed where applicable.

Usage recommendations

Ensure the motherboard supports PCIe bifurcation for the specific M.2 slot before purchasing. Confirm physical clearance and cooling for multiple add-in cards installed via the adapter, and verify power and thermal requirements of connected devices. For stable operation, use BIOS/UEFI updates recommended by the motherboard manufacturer and install vendor drivers for connected PCIe devices.