845970-B21 HPE® Adapter Converter Module 100G QSFP28 to 25G SFP28845970 B21 HPE Adapter Converter Module 100G QSFP28 to 25G SFP28 ATGBICS HPE compatible 845970 B21 QSFP28 to SFP28 Converter Module provides the ability to convert QSFP28 to SFP28. This product enables simple, cost effective connections between quad lane ports such as 100 Gigabit Ethernet adapters using QSFP28 and 25 Gigabit Ethernet hardware using SFP28 based cabling. This product operates within a commercial temperature range. Our product meets the