100G QSFP28 ESR4 4x 25G NRZ QSFP-100G-SR4-S 850nm 300m MPO-12/UPC Module, Cisco

The 100G QSFP28 ESR4 4x 25G NRZ QSFP-100G-SR4-S 850nm 300m MPO-12/UPC Module, Cisco is a hot-pluggable QSFP28 transceiver rated at 103.125Gbps (4x 25.78Gbps). Using a MTP/MPO-12 optical interface over MMF at 850nm, it covers transmission distances up to 200m@OM3/300m@OM4. Compliance with IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, SFF-8679, together with integrated diagnostic monitoring, makes it a dependable choice for 100G Ethernet, data center interconnect and 5G transport networks.
Product Highlights
- QSFP28 form factor, 103.125Gbps (4x 25.78Gbps) data rate
- Wavelength: 850nm
- Connector: MTP/MPO-12
- Reach: up to 200m@OM3/300m@OM4
- Fiber media: MMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | QSFP-100G-SR4-S |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 |
| Max Data Rate | 103.125Gbps (4x 25.78Gbps) |
| Wavelengths | 850nm |
| Max Cable Distance | 200m@OM3/300m@OM4 |
| Connector | MTP/MPO-12 |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -4~4dBm |
| RX Power | -12~2.4dBm |
| Power Consumption | ≤2.5W |
| Extinction Ratio | >2dB |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Inbuilt FEC | Supported |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Core Size | 50um/125um |
| Packaging Technology | COB Packaging |
| Protocols | IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, SFF-8679 |
Applications
The 100G QSFP28 ESR4 4x 25G NRZ QSFP-100G-SR4-S 850nm 300m MPO-12/UPC Module, Cisco is used in 100G Ethernet, data center interconnect and 5G transport networks, where it provides a 103.125Gbps (4x 25.78Gbps) link over MMF up to 200m@OM3/300m@OM4. With its MTP/MPO-12 optical interface, the module works directly with the MMF infrastructure already installed in most facilities. It is interoperable with Cisco platforms and replaces the Cisco part QSFP-100G-SR4-S directly. The link runs 4x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
Compliance: IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, SFF-8679. For projects standardized on Cisco hardware, this product replaces the QSFP-100G-SR4-S directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
Our part number for this module is QSFP-ESR4-100G. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.
Quality and Testing
Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.
Packaging Options
Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.
