Glossary
Plain-language definitions of optical interconnect terms.
What Is OSFP? Definition and Key Facts
OSFP (Octal Small Form-factor Pluggable) is a larger 400G/800G pluggable transceiver format with superior thermal headroom, used in AI clusters and co
What Is PAM4? Definition and Key Facts
PAM4 (4-level Pulse Amplitude Modulation) doubles bit rate per lane versus NRZ by encoding two bits per symbol — the modulation behind 50G+ electrical
What Is QSFP-DD? Definition and Key Facts
QSFP-DD (Quad Small Form-factor Pluggable Double Density) is a 400G pluggable transceiver format with eight 50 Gb/s electrical lanes, backward compati