What is the Huawei RTXM191-400?
The Huawei RTXM191-400 is a SFP optical transceiver module, listed by the manufacturer as "1.25G-1310NM-10KM-SM-ESFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Huawei RTXM191-400: a SFP optical transceiver module (1.25G-1310NM-10KM-SM-ESFP). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Huawei RTXM191-400 is a SFP optical transceiver module, listed by the manufacturer as "1.25G-1310NM-10KM-SM-ESFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Huawei network equipment, including parts such as the RTXM191-400, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue