H87MMA5671A2 Huawei GPON CLASS B+ SFP compatible module (PN:03031QHU) is fiber optic transceiver designed for operation over Single-Mode Fiber (SMF) optical cable. It has minimum guaranteed optical budget of 29. 5 dB, with in most cases is enough to reach the 20km distance. For example, SFP-10G-BXD1 must be used with SFP-10G-BXU1. Non-certified optical or copper modules cannot ensure transmission reliability and may affect service stability. Huawei is not liable for any problem caused by the use of non-certified optical or copper. HUAWEI TECHNOLOGIES CO. Copyright © Huawei Technologies Co. All other trademarks and trade names mentioned in this document are the property of their respective holders. Widely deployed by Internet Service Providers (ISPs), telecom operators, FTTH service providers, and enterprise network operators, these optical modules enable. In the AI era, Huawei provides a full range of GE to 800GE optical modules, featuring three major capabilities: Spanning (ultra-long transmission), Stable (ultra-high reliability), and Secure (ultra-solid security).