Part Number Change Notice for 100G Cable & Transceiver Modules

Sep 24, 2025 - Part Number Change Notice for 100G Cable & Transceiver Modules FS announces a part number change for the optical modules and cables listed below. This is solely a product part number change announcement - functionality remains completely unaffected when using the new part numbers. The updated numbering system is designed to streamline the customer ordering process. 1. Direct Attach Cables (DACs) & Active Optical Cables (AOCs) Former Part Number Upgraded Part Number Date Q28-AOxx (1m~100m) (Ethernet & Infiniband) QSFP-100G-AOxxx (1m~100m) Mar 14, 2024 Q28-PCxxE (1m~5m) (Infiniband) QSFP-100G-PCxxx (0.5m~5m) Q28-PCxx (0.5m~5m) (Ethernet) QSFP-100G-PCxxx (0.5m~5m) S112-PCxx (0.5m~2.5m) SFP-100G-PCxxx (0.5m~2.5m) Jul 11, 2024 SDD-AOxx (1m~70m) SDD-100G-AOxxx (1m~70m) Q28-ACxx (1m~9m) QSFP-100G-ACxxx (1m~9m) Q28-2Q28AOxxx (1m~100m) QSFP-100G-2QAOxxx (1m~100m) Q28-2Q28ACxx (1m~9m) QSFP-100G-2QACxxx (1m~9m) Q-2QPCxx (0.5m~5m) QSFP-100G-2QPCxxx (0.5m~5m) Q-4S28AOxx (1m~50m) QSFP-100G-4SAOxxx (1m~50m) Q-4S28PCxx (0.5m~5m) QSFP-100G-4SPCxxx (0.5m~5m) Q28-4S28ACxx (1m~9m) QSFP-100G-4SACxxx (1m~9m) Q28-4LCAOxx (1m~70m) QSFP-100G-4LCAOxxx (1m~70m) 2. QSFP28 Modules Former Part Number Upgraded Part Number Date QSFP28-PSM4-100G（2km） QSFP-PLR4L-100G Jan 18, 2024 QSFP28-ER4-100G QSFP-ER4L-100G Q28-IR4-100G-I QSFP-CWDM4-100G-I QSFP28-EIR4-100G QSFP-4W10-100G Q28-ER4L-100G-X QSFP-4W40-100G-E QSFP28-ISR4-100G QSFP-SR4-100G-I QSFP28-ILR4-100G QSFP-LR4-100G-I QSFP28-ESR4-100G QSFP-ESR4-100G QSFP28-PLR4-100G QSFP-PLR4-100G QSFP28-LX4-100G QSFP-LX4-100G QSFP28-ELR4-100G QSFP-ELR4-100G QSFP28-eER4-100G QSFP-eER4-100G QSFP28-ZR4-100G QSFP-ZR4-100G QSFP28-DR-100G QSFP-DR-100G QSFP28-FR-100G QSFP-FR-100G Q28-FR-100G-27 QSFP-FR-100G-27 Q28-FR-100G-29 QSFP-FR-100G-29 Q28-FR-100G-33 QSFP-FR-100G-33 QSFP28-LR-100G QSFP-LR-100G Q28-LR-100G-27 QSFP-LR-100G-27 Q28-LR-100G-29 QSFP-LR-100G-29 Q28-LR-100G-33 QSFP-LR-100G-33 QSFP28-ERL-100G QSFP-ERL-100G QSFP28-ER-100G QSFP-ER-100G Q28-4W20-100G-I QSFP-4W20-100G-I Q28-4W40-100G-I QSFP-4W40-100G-I Q28-ZR4-100G-I QSFP-ZR4-100G-I QSFP28-PIR4-100G (Infiniband &Ethernet) QSFP-PSM4-100G Mar 14, 2024 QSFP28-IR4-100GE (Infiniband) QSFP-CWDM4-100G QSFP28-IR4-100G (Ethernet) QSFP-CWDM4-100G QSFP28-SR4-100GE (Infiniband) QSFP-SR4-100G QSFP28-SR4-100G (Ethernet) QSFP-SR4-100G QSFP28-LR4-100GE (Infiniband) QSFP-LR4-100G QSFP28-LR4-100G (Ethernet) QSFP-LR4-100G Q28-100/112G-10 QSFP-LR4-100GM Mar 22, 2024 Q28-100/112G-20 QSFP-ELR4-100GM Q28-100/112G-40 QSFP-ER4-100GM Q28-100/112G-SR4 QSFP-SR4-100GM Q28-100G-BX10 QSFP-BX10-100G Apr 14, 2025 QSFP28-100G-BX20 QSFP-BX20-100G Q28-100G-BX30 QSFP-BX30-100G Q28-100G-BX40 QSFP-BX40-100G Q28-40/100G-SM4 QSFP-MBIDI-100G QSFP28-BIDI-100G QSFP-BIDI-100G DWDM2-Q28100G-80 DW2-QSFP100G80-xxxx 3. Converter Modules Former Part Number Upgraded Part Number Date CVR-CFP-QSFP28 CFP-QSFP28-CVR Jan 18, 2024 CVR-CFP2-QSFP28 CFP2-QSFP28-CVR CVR-QSFP28-SFP28 QSFP28-SFP28-CVR 4. Loopback Modules Former Part Number Upgraded Part Number Date Q28-LB QSFP-LOOP-100G Jan 18, 2024 Customer Impact of Change and Recommended Action No functional changes - There is no change to the fit or function of the products. Customers may receive either label until the old inventory is depleted. No action required - No action is needed by customers. Questions? - Please Contact Us for any questions or concerns.

Jul 15, 2025 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Jul 15, 2025 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Apr 15, 2025 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Mar 18, 2025 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Dec 03, 2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

100G QSFP28 & SFP-DD Transceiver Module Installation Guide

Oct 24, 2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Jul 12, 2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

May 28, 2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

May 28, 2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.