The 1m HPE R8M57A-1M Compatible 200GBASE-CR4 QSFP56 Direct Attach Copper Cable represents a high-performance solution for enterprise data center networking. This passive breakout DAC cable eliminates the need for active electronics, reducing power consumption and heat generation while maintaining exceptional reliability. **Key Features:** Powerful 200GB data rate capability enables seamless high-speed data transmission across your network infrastructure. The QSFP56 form factor provides maximum density in modern networking equipment. Constructed from pure copper with protective plastic jacketing, the 30AWG twinax design delivers superior signal integrity and reduced electromagnetic interference. The passive breakout architecture ensures plug-and-play compatibility without additional power requirements. **Technical Specifications:** IEEE 802.3cd certified for standards compliance. Operating temperature range of 0-70°C accommodates diverse data center environments. Dimensions of 12x12x2mm provide space-efficient deployment. Made in Vietnam and China with rigorous quality control standards. **Compatibility & Applications:** Direct replacement for HPE part numbers R8M57A-1M and P06248-B21. Perfect for connecting HPE switches, routers, and network infrastructure. Ideal for high-frequency trading systems, cloud computing facilities, and large-scale data centers requiring ultra-reliable connections. **Compliance & Safety:** Fully RoHS and ELV compliant meets EU Directive 2002/95/EC requirements. TUV and UL safety certifications ensure industry-standard protection. Harmonized under commodity code 8544.42.9090. **Value Proposition:** Custom brand programming available for OEM applications. Ships from convenient US locations with free standard shipping on orders exceeding $99. 90-day limited warranty provides protection for your investment. This cable represents an economical alternative to active modules while delivering comparable performance for short-distance interconnects.