As the world enters the era of Artificial Intelligence (AI) and Big Data, the demand for bandwidth in data centers has reached unprecedented levels. The 400G Active Optical Cable (AOC) has transitioned from a high-end niche product to a mainstream requirement for global high-speed interconnects. Today, hyperscale data center operators (Google, Amazon, Meta, Microsoft) and Tier 2 cloud providers are aggressively upgrading their infrastructure from 100G/200G to 400G and even 800G to support AI model training and massive data processing.
The industrial landscape for 400G AOC is characterized by the adoption of QSFP-DD (Quad Small Form-factor Pluggable Double Density) form factors and PAM4 (4-Level Pulse Amplitude Modulation) technology. This allows for doubling the data rate within the same physical footprint, significantly reducing the cost per bit and power consumption per gigabit—critical metrics for modern sustainable data centers.
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Large Language Models (LLMs) require massive GPU clusters. 400G AOCs provide the low-latency, high-bandwidth interconnects necessary for NVLink and InfiniBand fabrics, ensuring seamless communication between processing units.
Global procurement teams are shifting toward 400G AOC over traditional transceivers for short-reach (under 30m-100m) applications. AOCs eliminate the need for separate fiber patch cords and connectors, reducing installation complexity and potential failure points.
With data centers consuming massive amounts of electricity, the trend is toward "Green Interconnects." 400G AOC designs now focus on lower power consumption per module, helping operators meet ESG (Environmental, Social, and Governance) targets.
Our ODM 400G AOC solutions are deployed across various critical sectors worldwide:
Kocent Optec Limited, established in 2012 in Hong Kong as a hi-tech communication enterprise, is one of China's leading fiber optic termination product manufacturers and solution providers. With over 13 years of experience, we specialize in developing and manufacturing both passive and active categories for telecommunication networks, enterprise networks, and data centers.
By leveraging our extensive experience and excellent production capacity, we magnify the outcome for our valuable customers, expanding their core competencies. We define ourselves not just as a supplier, but as your valuable partner in fiber optic connection solutions.
We follow strict fiber optic industry standards, ensuring that 100% of products are tested and inspected before shipment.
MTP MPO Production Line
PLC Splitter Production Line
SFP QSFP Production Line
FDB and FOSC Machine
KCO Fiber provides high-quality SFP, SFP+, QSFP, AOC, and DAC modules compatible with major switch brands such as Cisco, Huawei, ZTE, H3C, Juniper, HP, TP-link, D-Link, Dell, Netgear, Ruijie, and more. Our customized solutions include:
Tailored optical design, mechanical layout, PCB layout, and software/firmware design to meet specific performance requirements.
Tactical CPRI & MTP/MPO Patch Cords: custom fiber types, connector types, lengths, cable colors, and logo labeling.
ODM services for fiber optic terminal boxes, distribution frames, patch panels, and splice closure boxes based on your design drawings.
Choosing KCO Fiber as your China-based manufacturer offers distinct advantages in the competitive 400G AOC market:
Our flagship 400G AOC modules utilize the latest in transceiver technology. For example, the ODM 400GBASE-SR4.2 QSFP-DD module uses PAM4 modulation at 850nm to achieve 100m transmission over Multimode Fiber (MMF). These modules are essential for 4x100G breakout applications, providing flexibility for data centers managing heterogeneous port speeds.
The QSFP-DD form factor is the industry's preferred choice for 400G because it is backwards compatible with QSFP+, QSFP28, and QSFP56, protecting your existing hardware investments while providing a clear path to higher bandwidth.
KOCENT OPTEC
