Our History
Macrochip Technology Co., Ltd. is a high-tech corporation dedicated to R&D and manufacturing of silicon photonics chips and optical transceivers for data centers and 5G networks. With the headquarters in Quanzhou, Macrochip also set up branch offices in Beijing Zhongguan Village and Wuhan Optical Valley.
Macrochip was founded in 2018, with a staff of over 200 people and a top-notch technical team in China. We have collaborated with overseas clients in Europe, America, Southeast Asia, and other regions, completing orders worth over 60 million US dollars.
Macrochip has developed a series of self-patented silicon photonics chips based on its innovative technologies on high-speed electro-optical modulation and high-efficiency optical coupling, which are featured with a compact package, low cost, low power consumption, and high extinction ratio. Taking the core advantages of self-developed silicon photonics chips as well as other technologies, Macrochip has a comprehensive portfolio for single-mode and multimode optical transceivers covering 25G/100G/200G/400G/800G, which offers solutions for both telecom and datacom.
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100G QSFP28 DR1
Part Number: MCQ-6PS1CC-5H. Form Factor: QSFP28. Transmitter: SIP. Wavelength: 1310. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 SR4
Part Number:MCQ-4NV38C-1H. Form Factor:QSFP28. Transmitter:VCSEL. Wavelength:850nm. Electrical Modulation: 4x25.78Gb/s NRZ Add to Inquiry -
100G QSFP28 PSM4
Part Number: MCQ-4NS3CC-5H. Form Factor: QSFP28. Transmitter: DFB. Wavelength: 1310nm. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 CWDM4
Part Number: MCQ-4NSCCC-2K. Form Factor: QSFP28. Transmitter: DFB. Wavelength: 1271/1291/1311/1331nm. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 LR4
Part Number: MCQ-4NSCLC-10. Form Factor: QSFP28. Transmitter: DFB. Wavelength: LWDM. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 ER4
Part Number: MCQ-4NSCLC-40. Form Factor: QSFP28. Transmitter: EML. Wavelength: LWDM. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 ER4 Lite
Part Number: MCQ-4NSCLC-40. Form Factor: QSFP28. Transmitter: EML. Wavelength: LWDM. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 FR1
Part Number: MCQ-6PS1CC-2K. Form Factor: QSFP28. Transmitter: SIP. Wavelength: 1310. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
100G QSFP28 LR1
Part Number: MCQ-6PS1LC-10. Form Factor: QSFP28. Transmitter: EML. Wavelength: 1310. Electrical Modulation: 4x25.78Gb/s NRZ. Add to Inquiry -
QSFP28 Optical Transceiver
The QSFP28 Optical Transceiver family covers a wide range of 100G solutions, from short‑reach multimode to long‑haul single‑mode optics. Within this family, each module is tailored to specific Add to Inquiry -
Optical Module 100G
Our optical module 100G family covers eight distinct QSFP28 solutions: SR4, PSM4, CWDM4, LR4, ER4/ER4 lite, DR1, FR1, and LR1. This article focuses on the 100G QSFP28 CWDM4 – the industry's Add to Inquiry -
100G QSFP LR4
Our 100G QSFP LR4 transceiver (part number MCQ‑4NSCLC‑10) delivers reliable 100G Ethernet over duplex single‑mode fiber for links up to 10km. Packaged in the industry‑standard QSFP28 form factor, Add to Inquiry
products

The Macrochip MCQ-6PS1CC-5H QSFP28 optical transceiver is designed for use in 100-Gigabit Ethernet links up to 500m over Single-Mode Fiber. It converts 4x25G NRZ electrical data to 1x106G PAM4 optical signals, each lane operating on 1310nm wavelength. The 100G QSFP28 DR1 product is compliant with IEEE 802.3cd 100GBASE-DR. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.
The Macrochip MCQ-4NV38C-1H QSFP28 optical transceiver is designed for use in 100-Gigabit Ethernet links up to 100 m over Multi-Mode Fiber. It integrates 4 data lanes in each direction with a 4×25 Gb/s data rate, each lane operating on an 850 nm wavelength. The 100G QSFP28 SR4 product is compliant with IEEE 802.3bm 100GBASE-SR4. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.

100G QSFP28 PSM4
The Macrochip MCQ-4NS3CC-5H QSFP28 optical transceiver is designed for use in 100-Gigabit Ethernet links up to 500m over Single-Mode Fiber. It integrates 4 data lanes in each direction with 4×25Gb/s data rate, each lane operating on 1310nm wavelength. The 100G QSFP28 PSM4 module is compliant with IEEE 802.3bm 100GBASE-PSM4. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.
100G QSFP28 CWDM4
The Macrochip MCQ-4NSCCC-2K QSFP28 optical transceiver is designed for use in 100-Gigabit Ethernet links up to 2km over Single-Mode Fiber. It integrates 4 data lanes in each direction with 4×25Gb/s data rate. The wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as defined in CWDM4 MSA. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.
FAQ
What scenarios is the 100G QSFP28 CWDM4 module best suited for?
A: It is designed for metro access networks and medium-distance data center interconnects (e.g., campus or cross-building links), offering a balance between cost and performance for 2 km transmissions.
What is the maximum transmission distance of the 100G QSFP28 CWDM4?
A: It supports up to 2 km, making it ideal for cost-effective connectivity between nearby facilities.
Why is there no network connection after inserting the module? What could be wrong?
·Incorrect Cable: Using single-mode fiber.
·Contaminated Interface: Dust on fiber connectors (clean with a fiber optic cleaning pen).
·Excessive Distance: Transmission exceeds 100 meters (shorten the distance or use a long-range module).
·Device Compatibility: Older devices may not recognize the module (check the compatibility list or update firmware).
Which devices are compatible with this 100G QSFP28 SR4 module?
A1: Compatible Devices: High-speed switches, servers, or routers supporting 100G connectivity (e.g., Cisco, Huawei, HPE).
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As one of the leading 100g optical transceiver manufacturers and suppliers in China, we warmly welcome you to buy high quality 100g optical transceiver in stock here from our factory. Contact us for quotation.
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