The IBM 4657-ACHX package contains four 100GbE QSFP28 SR4 transceivers, designed for ultra-high-speed data transmission in modern data centers and networking environments. These quadruple small form-factor pluggable (QSFP28) modules are intended for Short Range (SR) applications and offer a bandwidth of 100 Gigabits per second (Gb/s) each. They are ideal for densely packed data center environments where high data throughput and bandwidth are paramount. The SR4 designation indicates these transceivers are optimized for short-range, multi-mode fiber optic communication, making them perfect for interconnecting data center hardware within the same or adjacent racks. With these transceivers, organizations can significantly boost their network performance to support cloud services, real-time data analytics, and other bandwidth-intensive applications. Their compatibility with existing QSFP28 ports ensures easy integration into current infrastructure, providing a cost-effective solution for network expansion or upgrade.