PCIe 4x to M.2 M Key & B Key Dual Slot Expansion Riser Card Model TXB044, Support NVMe PCIe & SATA NGFF SSD, Storage Converter Adapter for Gaming PC, BTC & Chia Mining Rig

This TXB044 PCIe x4 expansion riser card integrates two independent M.2 slots, separately supporting M Key NVMe PCIe SSD and B Key SATA NGFF SSD. It expands two extra high-speed storage positions via one spare PCIe 4x motherboard slot, greatly solving insufficient native M.2 interfaces on gaming hosts and mining rigs.

The M Key slot unlocks full NVMe read/write speed for game loading, system boot and high-speed file transmission; the independent B Key SATA slot provides massive low-cost storage space specially for Chia plot file storage and BTC mining disk caching. Adjustable screw positions support all mainstream M.2 lengths from 2230 to 2280, allowing mixed installation of small and large capacity SSDs.

Built with multi-layer anti-interference circuit and high-purity gold-plated terminals, the TXB044 riser reduces signal attenuation and cross interference. It maintains stable continuous performance under long-hour mining plotting and heavy gaming load without disk recognition failure or disconnection issues.

No complicated driver modification required, fully compatible with all mainstream Windows versions and Linux mining operating systems. Simple plug-and-play installation with standard full-height metal bracket for easy fixation inside ATX, MATX and mining chassis.

Two slots work independently: M Key only supports NVMe PCIe SSD, B Key only supports SATA NGFF SSD, cross-key drives cannot be identified normally. Ideal upgrade accessory for game players, Chia/BTC miners and DIY multi-storage NAS builders.