StarTech SFP10GLRMST 10GBASE-LRM SFP+ Transceiver Module

Overview

The StarTech SFP10GLRMST is a 10GBASE-LRM SFP+ transceiver module designed for 10 Gbps full-duplex operation over multimode fiber at 1310nm. Built to IEEE 802.3aq specification and compatible with Cisco SFP-10G-LRM hardware, it delivers a practical upgrade path for facilities that already have OM1/OM2 multimode fiber infrastructure and need to step up to 10GbE without re-pulling cable. The module uses an LC duplex connector, reaches up to 200 meters, and draws under 1 watt — making it a clean fit in both edge-of-network and data center access-layer deployments where port-level power budgets matter.

Key Features

• 10 Gbps Full-Duplex Throughput: Operates at a full 10 Gbps in both directions simultaneously, supporting high-bandwidth applications like NVR uplinks, server-to-switch backbone links, and storage area network interconnects without half-duplex throughput compromise.
• 200m Multimode Fiber Reach: The 1310nm wavelength over IEEE 802.3aq LRM gives you up to 200 meters on existing OM1 or OM2 multimode plant — substantially further than 10GBASE-SR on older fiber grades, which means you can reuse legacy MMF runs without replacing fiber or settling for slower speeds.
• LC Duplex Connector: Uses the industry-standard LC form factor, so it pairs directly with existing LC-terminated multimode patch cables already present in most enterprise wiring closets. No adapter or re-termination required in most scenarios.
• Sub-1W Power Consumption: Drawing less than 1 watt per port, the SFP10GLRMST keeps switch-level thermal and electrical load minimal. In a fully loaded 48-port chassis, transceiver power draw adds up fast — modules at this consumption level help stay within switch power budgets without derated performance.
• 1310nm Wavelength: The 1310nm transmission wavelength is optimized for reduced modal dispersion over legacy multimode fiber, which is the core reason this module extends reach to 200m where 850nm SR modules would fall short on older fiber grades.
• MTBF of 1,535,075 Hours: The rated mean time between failures of over 1.5 million hours translates to an expected operational life well beyond a typical 5–7 year network refresh cycle — relevant when these modules are deployed in hard-to-access switch stacks or overhead cable trays.
• Operating Temperature 0°C to 70°C: Rated for standard commercial temperature range, covering virtually all conditioned data center, server room, and IDF/MDF closet environments without requiring industrial-grade variants.
• IEEE 802.3aq Compliance: Adherence to the 802.3aq standard means the module negotiates correctly with compliant switches and NICs, avoiding link training issues that can arise with non-standards-conformant optics on LRM-capable ports.

Integration and Compatibility

The SFP10GLRMST is coded and formatted for compatibility with Cisco SFP-10G-LRM deployments. It targets the SFP+ slot standard and operates in full-duplex mode across multimode fiber terminated with LC connectors. The module conforms to IEEE 802.3aq 10GBASE-LRM, which is the governing standard for 10GbE over legacy multimode fiber at extended reach. Storage temperature tolerance from -40°C to 85°C means the module handles shipping and staging in uncontrolled environments without risk of damage before installation. Humidity operating range is specified at 30% to 75% RH — standard for conditioned indoor spaces.

When integrating into network switches for IP camera backbone links or NVR uplinks, confirm that the target switch port is an SFP+ slot (not SFP-only) before ordering — 10G SFP+ modules will not operate at full speed in 1G SFP slots. Review the SFP and SFP+ module catalog if you need 1G variants or single-mode alternatives. For complete fiber infrastructure planning, the fiber network design guide covers reach vs. fiber grade tradeoffs in detail. If you are building out a high-density uplink layer, pairing with compatible 10G network switches ensures the port-level negotiation works without manual override.

Frequently Asked Questions

Q: What fiber type does the SFP10GLRMST require?

A: The SFP10GLRMST is designed for multimode fiber (MMF). It uses a 1310nm wavelength per the IEEE 802.3aq 10GBASE-LRM standard, which is specifically engineered to work with legacy OM1 and OM2 multimode fiber up to 200 meters.

Q: What connector type does this module use?

A: It uses an LC duplex connector, which is the standard LC form factor common in enterprise and data center fiber patch panels.

Q: Is the SFP10GLRMST compatible with Cisco switches?

A: Yes. The SFP10GLRMST is coded for compatibility with Cisco SFP-10G-LRM hardware and targets Cisco switch platforms that accept SFP+ modules operating to the 10GBASE-LRM standard.

Q: What is the maximum reach of this module?

A: The maximum rated transfer distance is 200 meters over multimode fiber, operating at 1310nm per IEEE 802.3aq.

Q: How much power does the SFP10GLRMST draw?

A: Power consumption is rated at less than 1 watt, keeping per-port transceiver overhead minimal in dense switch deployments.

Q: What is the operating temperature range?

A: The module is rated for 0°C to 70°C operating temperature, covering standard commercial and data center environments.

Ted Perry

The spec that stands out to me on the SFP10GLRMST is the 200-meter reach over legacy multimode fiber at 1310nm. In practice, that's the deciding factor when a client has existing OM1 or OM2 runs between their IDF and MDF — you don't need to re-pull fiber or drop to a slower link speed. That's a real operational cost avoidance, not a theoretical one.

Technical Highlights:

• 200m on Legacy MMF: The 1310nm LRM design extends reach to 200m on OM1/OM2 fiber grades where 850nm SR modules would max out well short of that — directly applicable to older campus and enterprise wiring plants.
• Sub-1W Draw: At under 1 watt per transceiver, power overhead stays negligible even in high-density uplink bays. Compare this against active components that can run 2–3W per port and it matters at scale.
• MTBF 1,535,075 Hours: That's roughly 175 years of theoretical continuous operation. For modules installed in overhead trays or stacked closets where physical access for replacement is disruptive, this reliability rating is worth noting at procurement time.

Deployment Considerations:

• Confirm the target switch slot is SFP+ (10G-capable), not a legacy 1G SFP slot. The SFP10GLRMST will not run at full 10G throughput in a 1G-only port regardless of physical compatibility.
• Operating humidity is specified at 30–75% RH. In humid plant environments or non-climate-controlled telecom rooms approaching the upper end of that range, validate the environment before deployment — this is a commercial-temperature module, not industrial.

This module fits cleanest in enterprise campus backbone upgrades where the fiber plant is already OM1/OM2 and the project goal is 10GbE uplink capacity without a fiber replacement budget — exactly the kind of IDF-to-core upgrade that shows up in phased network modernization projects.