DIEWU TXB199 PCIe 5.0 to Dual M.2 NVMe Converter with Heatsink

The DIEWU TXB199 is a PCIe expansion adapter designed to install two M.2 NVMe solid-state drives in a compatible desktop computer. It fits into a PCI Express x4, x8, or x16 slot and includes a heatsink to help dissipate heat generated during intensive storage operations.

Key Features

• PCIe 5.0 interface: Designed for high-speed data transfer through a compatible PCI Express slot.
• Dual M.2 NVMe support: Allows two compatible M.2 NVMe SSDs to be installed on one expansion card.
• Broad slot compatibility: Designed for use with PCIe x4, x8, and x16 slots, subject to motherboard and system support.
• Integrated heatsink: Helps manage SSD temperatures and maintain stable performance under sustained workloads.
• Compact construction: Measuring 99.8 × 46.5 mm, the adapter is suitable for standard desktop installations.

Technical Specifications

• Brand: DIEWU
• Model: TXB199
• Product type: PCIe-to-M.2 NVMe expansion adapter
• PCI Express generation: PCIe 5.0
• Compatible slot widths: x4, x8, and x16
• M.2 support: 2 × M.2 NVMe SSDs
• Connector information: 1 × NGFF M-Key connector listed
• Chipset: Not specified
• Cooling: Integrated heatsink
• Dimensions: 99.8 × 46.5 mm
• Weight: 60 g

Compatibility Notes

The TXB199 is intended for M.2 NVMe solid-state drives with an M-Key interface. It is not intended for M.2 SATA drives or other M.2 modules unless explicitly supported by the system or adapter specification.

Although the adapter is designed for two M.2 drives, the supplied specification lists one NGFF M-Key connector. Therefore, the exact electrical configuration, PCIe lane allocation, bifurcation requirements, and whether both SSDs operate independently should be confirmed before installation.

Support for PCIe 5.0 speeds also depends on the motherboard, processor, installed SSDs, BIOS configuration, and operating system. A PCIe x16 slot may operate at reduced electrical width depending on the system platform.

Summary

The DIEWU TXB199 is a compact PCIe 5.0 expansion card for installing up to two M.2 NVMe SSDs in a desktop computer. With compatibility for PCIe x4, x8, and x16 slots, an integrated heatsink, and a 60 g lightweight design, it is suitable for expanding high-speed storage capacity in compatible systems.