Uzbekistan QSFP-DD optical module PAM4

Currently, there is no publicly documented manufacturer of QSFP-DD PAM4 optical modules based in Uzbekistan.

QSFP-DD (Quad Small Form Factor Pluggable – Double Density) modules are high-speed optical transceivers designed for data center and networking applications, supporting 400G and beyond using PAM4 modulation to double data throughput without increasing the baud rate . These modules typically feature 8 electrical lanes, backward compatibility with QSFP28/QSFP56, and support multiple form factors such as SR8, DR4, FR4, LR4, and LR8 for short, medium, and long-distance fiber links . PAM4 (4-level Pulse Amplitude Modulation) allows two bits per symbol, enabling high-speed transmission over single-mode or multimode fiber . Globally, QSFP-DD PAM4 modules are produced by companies such as Jabil, Cisco, and QSFPTEK, which offer modules compliant with IEEE 802.3bs, 100G Lambda MSA, and OIF 56G PAM4 standards . These modules are widely used in data centers, cloud networks, and high-performance computing environments, with optical reaches ranging from 70 meters (SR8) to 10 km (LR4) . For Uzbekistan, while there is no known domestic manufacturer, potential options include:

• Importing from global suppliers like QSFPTEK, Cisco, or Jabil, which provide tested, high-reliability modules compatible with multi-vendor switches .
• Partnering with regional distributors in Central Asia who can supply QSFP-DD PAM4 modules and provide technical support.
• Exploring local electronics or telecom companies for potential assembly or OEM opportunities, though no public records confirm active production in Uzbekistan. If your goal is to source QSFP-DD PAM4 modules in Uzbekistan, the most practical approach is to work with authorized distributors or importers who can provide modules meeting IEEE and MSA standards, ensuring compatibility with existing network infrastructure.