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

Designed for 100G Ethernet, data center interconnect and 5G transport networks, the 100G QSFP28 ESR4 4x 25G NRZ QSFP-100G-SR4-S 850nm 300m MPO-12/UPC Module, Cisco provides 103.125Gbps (4x 25.78Gbps) throughput in a QSFP28 form factor. It operates at 850nm over MMF through a MTP/MPO-12 connector and supports link lengths up to 200m@OM3/300m@OM4. The module meets IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, SFF-8679 and includes digital diagnostic monitoring for live status readout.

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

Network architects choose the 100G QSFP28 ESR4 4x 25G NRZ QSFP-100G-SR4-S 850nm 300m MPO-12/UPC Module, Cisco for 100G Ethernet, data center interconnect and 5G transport networks: it runs 103.125Gbps (4x 25.78Gbps) over MMF and reaches 200m@OM3/300m@OM4. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of QSFP-100G-SR4-S.

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

To order, quote QSFP-ESR4-100G together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.

Packaging

Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.

Custom-made Fiber Products

As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.

Logistics

Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.

Quality Assurance

Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.