Specification Review
Align category, shielding, cable fit, contact plating and application requirements.
100G QSFP28 CWDM4 optical transceiver designed for 100 Gigabit Ethernet over single-mode fiber (SMF). Supports transmission up to 2km using duplex LC connectors with 1310nm CWDM4 technology. Fully compatible with Finisar FTLC1152RGPL, delivering low power consumption, DDM support, and enterprise-grade reliability for data centers and cloud networking.
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| Item | Specification |
|---|---|
| Product Name | 100G QSFP28 CWDM4 Optical Transceiver |
| Model | DT-QSFP28-100G-CWDM4 |
| Compatible Model | Finisar FTLC1152RGPL |
| Brand | Detwiler Tech / OEM / ODM |
| Product Type | Optical Transceiver Module |
| Form Factor | QSFP28 |
| Ethernet Standard | 100GBASE-CWDM4 |
| Data Rate | 103.1Gbps Aggregate (100GbE) |
| Fiber Type | Single Mode Fiber (SMF G.652) |
| Connector | Duplex LC |
| Maximum Transmission Distance | 2km |
| Wavelength | CWDM4 (1271 / 1291 / 1311 / 1331nm) |
| Transmitter | 4 × 25Gbps CWDM DFB Laser |
| Receiver | PIN Photodiode |
| Electrical Interface | 4 × 25G CAUI-4 |
| Digital Diagnostics | DDM / DOM Supported |
| Management Interface | I²C |
| Supply Voltage | 3.3V |
| Power Consumption | ≤3.5W |
| Optical Budget | 5dB (with RS-FEC) |
| Bit Error Rate | 5 × 10⁻⁵ |
| Operating Temperature | 0°C ~ +70°C |
| Storage Temperature | -40°C ~ +85°C |
| Relative Humidity | 15% ~ 85% Non-condensing |
| Hot Pluggable | Yes |
| Compliance | QSFP28 MSA, CWDM4 MSA, IEEE 802.3bm, SFF-8636, SFF-8665, RoHS |
| Laser Safety | Class 1 Laser |
| Packaging | Individual Box / OEM Package |
| OEM/ODM | Supported |

| Option | Available Choices |
|---|---|
| Transmission Distance | 100m, 500m, 2km, 10km |
| Optical Technology | SR4, CWDM4, LR4, ER4 |
| Compatibility | Cisco, NVIDIA, Arista, Juniper, Huawei, HPE, Dell, Intel, Broadcom, OEM |
| Packaging | Individual Box, OEM Custom Packaging |
| Label Printing | Detwiler Tech / OEM / ODM |
The Detwiler Tech DT-QSFP28-100G-CWDM4 is a high-performance 100G QSFP28 CWDM4 optical transceiver engineered for high-speed Ethernet transmission over single-mode fiber (SMF). Fully compatible with Finisar FTLC1152RGPL, it complies with QSFP28 MSA, CWDM4 MSA, and IEEE 802.3bm standards.
Featuring 4×25Gbps CWDM DFB lasers, Duplex LC interface, Digital Diagnostic Monitoring (DDM), and low power consumption below 3.5W, the module delivers reliable 100GbE connectivity up to 2km. It is optimized for hyperscale data centers, cloud computing, AI networking, enterprise core networks, and telecom infrastructure.
Detwiler Tech provides comprehensive OEM/ODM optical transceiver solutions, including custom labels, EEPROM compatibility programming, firmware optimization, private packaging, and compatibility coding for Cisco, NVIDIA, Arista, Juniper, Huawei, HPE, Dell, Intel, Broadcom, and other leading networking platforms.
Inspect the housing, contacts, termination interface and assembly details before sample approval.
A practical sourcing workflow for structured cabling products, from requirement review to repeat orders.
Align category, shielding, cable fit, contact plating and application requirements.
Confirm the agreed construction, appearance and packing before volume production.
Define inspection points and acceptance requirements for the ordered configuration.
Coordinate private labels, packaging, barcodes and approved product variants.
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DetwilerTech is a professional manufacturer and supplier of network connectivity solutions. With over 15 years of industry experience, we provide high-quality structured cabling products including RJ45 connectors, keystone jacks, patch panels, fiber optic cables, and custom OEM/ODM solutions to distributors, system integrators, and contractors worldwide.
ISO-certified production facilities with automated assembly lines ensuring consistent quality at scale
Dedicated R&D and engineering team providing technical support and custom design services
Efficient worldwide shipping with full export documentation, customs clearance support, and reliable delivery
Dedicated account managers providing personalized service from inquiry through after-sales support
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