Product Introduction The ‌400G OSFP SR8 100m MPO Optical Transceiver‌ is a high-density, parallel 400Gbps optical module designed for ultra-short-range data center interconnects. Featuring an OSFP form factor with 8×50G PAM4 modulation, it delivers 425Gbps aggregate bandwidth over OM4 multimode fiber (MMF) up to 100 meters. Applications:‌ Ideal for hyperscale data centers, HPC clusters, and 400G Ethernet backbones, this transceiver bridges rack-to-rack and leaf-spine topologies with low power consumption (<10W). Its plug-and-play design ensures rapid deployment in bandwidth-intensive environments. Key Features   OSFP MSA compliant   8 parallel laneson 850nm center wavelength   Compliant to IEEE802.3bs Specification   Up to 100m transmission on multi-mode fiber(MMF)OM3 with FEC   Operating case temperature:0 to 70℃   8x53.125Gb/s electrical interface(400GAUI-8)   DataRate 53.125Gbps(PAM4)per channel.   Maximum power consumption 12W   MPO-16 connector   RoHS compliant 200G QSFP56 SR4 100M 400G QSFP-DD SR8 100M 400G QSFP-DD DR4 2KM 400G QSFP-DD LR4 10KM 400G OSFP SR8 100M 200G 400G 400G 400G 400G 100M 100M 2KM 10KM 100M 850nm 850nm 1310nm CWDM 850nm MPO MPO MPO LC MPO MM MM SM SM MM DDM DDM DDM DDM DDM COM: 0°C ~70°C COM: 0°C ~70°C COM: 0°C ~70°C COM: 0°C ~70°C COM: 0°C ~70°C FAQ: Q1: What is 400G OSFP?‌ A1: The OSFP (Octal Small Form-factor Pluggable) is a 400G optical module standard with 8 electrical channels, designed for high-speed data transmission in data centers and telecom networks. Q2: What are the advantages of OSFP over QSFP-DD?‌ A2: Better heat dissipation (integrated heatsink) and higher power efficiency, suited for high-performance computing. Q3: How does OSFP differ from QSFP-DD?‌ A3: OSFP has a larger form factor and non-compatible electrical interfaces, while QSFP-DD is backward-compatible with QSFP28 modules. Q4:What encoding scheme does 400G OSFP use?‌ A4: Data Rate 53.125Gbps (PAM4) per channel(Maximum power consumption 12W), balancing speed and complexity. Q5: What is the maximum transmission distance for 400G QSFP-DD LR4? A5: The LR4 variant supports up to 10km over single-mode fiber (SMF) using 4x106Gbps lanes, ideal for 5G and cloud interconnects. (https://www.etulinktechnology.com/400g-qsfp-dd-lr4-10km-lc-optical-transceiver_p330.html) Q6: What is the electrical interface of QSFP-DD? A6: The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into a single channel for 400Gb/s optical transmission. Q7: Does QSFP-DD support digital diagnostics? A7: Yes, it includes DDM (Digital Diagnostic Monitoring) per MSA standards, enabling real-time monitoring of temperature, voltage, and optical power. Q8: What DAC options exist for 400G QSFP-DD? A8: Available configurations include direct QSFP-DD-to-QSFP-DD, or breakout to 2x200G QSFP56/4x100G QSFP56/8x50G SFP56 for flexible scaling.