# Network transceiver module Cisco 100GQSFP-SR1.2-4= QSFP28 100 Gbit/s Fiber optic LC multimode

**URL:** https://aio.lv/en/product--cisco-100gqsfp-sr12-4--12256601
**Data updated:** 2026-04-14 22:29 (EEST)
**Category:** Network Transceiver Modules
**Manufacturer:** Cisco
**Manufacturer code:** 100GQSFP-SR1.2-4=
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Cisco 100GQSFP-SR1.2-4= is a QSFP28 fiber-optic network transceiver module supporting up to 100 Gbit/s data rate. Designed for short-reach multimode links with LC connectors, it fits QSFP28 ports and enables high-density 100GbE connections in switches and routers. Typical use cases include data center uplinks, aggregation and high-speed server interconnects.

## Long description

Cisco 100GQSFP-SR1.2-4= is a QSFP28 fiber-optic transceiver module engineered for short-reach multimode links and high-density 100 Gbit/s networks. The module supports 100GbE transmission over multimode fiber using LC connectors, fits standard QSFP28 ports and is intended for integration into switches, routers and server network interfaces. Typical deployments include data center uplinks, aggregation fabrics and high-speed server interconnects where compact, hot-pluggable, multi-lane optics are required.
Advantages
The module delivers 100 Gbit/s aggregate throughput in a QSFP28 form factor, enabling four lanes of parallel multimode transmission in a single port. Its LC multimode interface and short-reach optics allow dense 100GbE connections between adjacent racks or within data halls. Being hot-pluggable and designed for standard QSFP28 ports, it simplifies installation and replacement while supporting common multimode fiber types for distances typical to enterprise and campus data centers.
Suitable for
Data center top-of-rack and spine uplinks where short-reach 100GbE is required
Aggregation links between switches in the same room or nearby rooms
High-speed server-to-switch interconnects within a rack or adjacent racks
Environments using multimode fiber with LC connectors and short reach requirements
When it may not be suitable
This transceiver is optimized for short-reach multimode fiber and LC connections; it is not intended for long-haul or single-mode fiber deployments. If your network requires extended distances beyond the multimode short-reach range or uses single-mode transceivers and LC/UPC incompatible link pairs, this module will not meet those needs.
Key specifications
Form factor: QSFP28 (hot-pluggable)
Aggregate data rate: 100 Gbit/s
Fiber type: Multimode fiber
Connector type: LC duplex
Typical reach: Short-reach multimode distances (suitable for up to typical data center spans)
Wavelength range: multimode short-reach optical wavelengths
How to use
Install the QSFP28 transceiver into a compatible QSFP28 port on the switch, router or server network adapter while the host device is powered on or according to the device vendor’s hot-swap guidance. Connect multimode LC duplex patch cables between the transceiver and the remote port. Allow the device to negotiate link parameters and verify link status via the host port indicators or management interface. For reliable operation, use fiber patch cords and cabling that meet multimode specifications and maintain clean connector endfaces.
What to consider before purchase
Confirm the host device supports QSFP28 100GbE transceivers and the specific optical type (short-reach multimode)
Ensure your cabling infrastructure uses compatible multimode fiber and LC connectors
Verify required link distances fall within the short-reach multimode performance of the module
Usage recommendations
Use this QSFP28 module for dense 100GbE links inside data centers and aggregation zones where multimode LC cabling is already deployed. Keep fiber connectors clean, follow vendor guidance for transceiver compatibility, and monitor link status after installation to confirm expected throughput and error rates.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP28 |
| Maximum data transfer rate | 100000 Mbit/s |
| Ethernet interface type | 100 Gigabit Ethernet |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Features

| Feature | Value |
|---|---|
| Product colour | Grey |

## FAQ

### What payment options are available?

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### What is the warranty period?

All Cisco products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cisco service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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