The official store for QSFPTEK. We provide compatible optical modules with online shopping function. By combining four-level pulse amplitude modulation (PAM4) with dense wavelength division multiplexing (DWDM) technology, these transceivers enable high-capacity, long-reach optical links up to 80–100 km while maintaining low power consumption and high spectral efficiency. PAM4 Modulation & PAM4 vs NRZ, How Much Do You Know? Compared to NRZ, PAM4 signaling double the data capacity per lane and reduce system cost. Do You Know The Differences Between MTP VS MPO. 200G QSFP56 transceivers with PAM4 modulation for high-speed data center connectivity. SR4 and FR4 options supporting 100m to 2km reach While 100G transceivers (especially QSFP28 form factor ones) are well known and used on a large scale in the optical industry, the demand for higher capacity. With the widespread adoption of 100G PAM4 modulation technology, current 400G/800G optical modules extensively utilize the 4×100G PAM4 and 8×100G PAM4 architectures. Against this backdrop of technological evolution, traditional 4×25G NRZ schemes (e.
[PDF Version]