OSFP vs QSFP-DD: This post mianly introduces the future 400G transceiver, namly QSFP-DD and OSFP, and makes a comparsion between these two modules.
Differences Between QSFP-DD and QSFP28/OSFP/QSFP56/QSFP+/COBO/CFP8
400G Optical Transceiver: Mainstream of Future Data Center
Comparing 200G/400G capable form factors (QSFP-DD vs. QSFP+/QSFP28/OSFP/CFP9/COBO) - Prolabs
Overview of 800G Optical Transceiver - NADDOD Blog
Overview of 400G QSFP-DD Optical Transceiver Module
Modern form factors for 200G/400G networks (QSFP-DD vs. QSFP+/CFP8/COBO)
QSFP-DD vs. OSFP: From 400G to 800G and Beyond in the Data Center - Approved Networks
400G transceiver trend - Skylane Optics
400G Network Archives - Fiber Optic Cabling Solutions
400G QSFP-DD / OSFP Transceiver
Overview of 800G Optical Transceiver - NADDOD Blog
Optical Transceiver Solution Archives - Tutorials Of Fiber Optic Products