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400G QSFP-DD LR4
Carritech alternative:
CT-400G-QDD-LR4
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Fully compatible Carritech alternative
Carritech Optics can offer CT-400G-QDD-LR4 as a fully compatible, high-quality alternative to H3C QSFPDD-400G-LR4-WDM1300-DC. This Carritech alternative is matched against the key optical specifications and can be programmed and tested for your network requirements.
Carritech part number: CT-400G-QDD-LR4
400G QSFP-DD LR4 1310NM 10KM
400G QSFP-DD LR4 transceiver for 400GBASE-LR4 Ethernet, supporting up to 10 km transmission over single-mode fiber with CWDM4 lasers, duplex LC interface, and ~12 W power consumption.
Quality assured Tested, compliant and backed by lifetime warranty.
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The hardware listed below is a selection of key popular equipment, not a complete compatibility list. This transceiver may also be compatible with many other hardware models. Contact us and we can check the exact hardware you need.
Review the technical specifications, applications, features, delivery information and warranty coverage for this product.
The CT-400G-QDD-LR4 from Ottica Carritech is a QSFP-DD LR4 transceiver module designed for 400GBASE-LR4 applications, supporting data rates up to 400Gbps. Utilising a CWDM4 laser and PIN receiver, it enables reliable transmission over single-mode fiber (SMF) up to 10 kilometers. It operates with an 8×53.125Gbps PAM4 electrical interface (400GAUI-8) and features integrated digital diagnostic monitoring through an I2C interface. The module is compliant with QSFP-DD CMIS rev4.0, IEEE 802.3cu, and QSFP-DD MSA hardware standards, with RoHS compliance under EU Directive 2015/863/EU. The transceiver operates within a 0°C to 70°C case temperature range and consumes a typical power of 12W.
Designed for data center and cloud networking applications, the module provides precise optical performance with a wavelength range spanning 1264.5nm to 1337.5nm across four lanes. It delivers high extinction ratios, consistent signal strength, and robust operational reliability. The CT-400G-QDD-LR4’s QSFP-DD MSA package with an LC duplex connector ensures easy integration and scalability for modern high-speed optical networks.
The CT-400G-QDD-LR4 is a hot-pluggable QSFP-DD optical module designed for 400GBASE-LR4 Ethernet. It delivers 400 Gb/s aggregate bandwidth via 8×53.125 Gb/s PAM4 electrical lanes (400GAUI-8) mapped into 4 CWDM optical channels (1271–1331 nm). The module supports transmission up to 10 km on G.652 SMF with host FEC, consumes ~12 W, and provides integrated digital diagnostics monitoring (DDM) accessible via I²C.
| Parametro | Valore |
|---|---|
| Lane signaling rate | 106.25 Gb/s PAM4 |
| Lunghezze d'onda | 1271, 1291, 1311, 1331 nm |
| Potenza di lancio media del TX | −2.7 to +5.1 dBm |
| OMAouter per lane | 0.3 to +4.4 dBm |
| Rapporto di estinzione | ≥ 3,5 dB |
| TDECQ | ≤ 3.9 dB |
| Potenza d'ingresso media RX | −9 to +5.1 dBm |
| RX sensitivity (OMAouter) | ≤ −6.8 dBm |
| Soglia di danno RX | ≤ +6.1 dBm |
| SMSR | ≥ 30 dB |
Carritech Optics can offer a fully compatible, high-quality alternative to H3C QSFPDD-400G-LR4-WDM1300-DC.
Carritech part number: CT-400G-QDD-LR4
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the QSFPDD-400G-LR4-WDM1300-DC, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.
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Carritech alternative: CT-400G-QDD-LR4
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