UnitekFiber 100G QSFP28 active optical cable includes QSFP28 to QSFP28 AOC, QSFP28 to 4*SFP28 AOC, conforms to MSA QSFP28, IEEE802.3, SFF-8431 and other standard protocols; it has the characteristics of low power consumption, small size and high speed, which is beneficial to the increase of data center Capacity, increase port density and reduce power consumption. Mainly used in Ethernet, data center internal network, data center interconnection and other environments
The 100G QSFP28 to QSFP28 Active Optical Cable (AOC) is a high-speed, integrated optical assembly designed for short-range 100G Ethernet links up to 5 meters. Utilizing 850nm VCSEL technology over OM3 multimode fiber, this AOC offers a lower-cost and lower-power alternative to 100G SR4 transceivers. It is optimized for Top-of-Rack (ToR) and Spine-Leaf switch-to-switch connections.
l40Gb/s active optical cable up to 100m OM2 MMF
l850nm VCSEL and PIN receiver
lSingle 3.3V power supply
lOperating Case Temperature: -5~75℃
lHot pluggable
lLow Power Consumption
lLight weight
lSmall Bend Radius
lDigital Diagnostic Monitor(DDM)
lAll-metal Housing for Superior EMI Performance
At 100G speeds, the choice between AOC and DAC (Copper) is no longer just about price—it's about Signal Integrity and Airflow.
| Feature | 100G QSFP28 AOC (5m) | 100G QSFP28 DAC (Copper) |
| Transmission Media | Multimode Fiber (OM3) | Twinax Copper |
| Max Reach (Reliable) | Up to 100m | Hard Limit < 5m (High Signal Loss) |
| Power Consumption | < 2.5W per end | ~0.1W (but induces port heat) |
| Cable Weight | Ultra-Light (Fiber) | Heavy (Thick Copper) |
| Bend Radius | 30mm (Highly Flexible) | >75mm (Rigid, blocks airflow) |
| EMI Immunity | Complete Immunity | Susceptible to High-Freq Noise |
The QSFP28 AOC operates via 4 full-duplex lanes, with each lane capable of transmitting data up to 25.78Gbps. To ensure error-free performance in high-density AI clusters, UnitekFiber integrates Digital Diagnostics Monitoring (DDM), allowing engineers to track:
Real-time Optical Output/Input Power
Module Temperature & Voltage
Laser Bias Current
In 100G networks, passive copper cables (DACs) face severe Skin Effect and signal degradation beyond 3 meters. Our 5m AOC uses Active Signal Reconditioning to maintain a clean "Eye Diagram."
By using factory-terminated AOCs, we eliminate the 0.75dB loss typical of field-connected patch cords, ensuring the highest Link Margin.
lDatacom
lLow-latency and high-speed interconnections for high performance computing(HPC)
l40G Ethernet SR4
lOther high-throughput data transmission network
lStorage area Network(SAN)
The 5m 100G AOC is the ideal choice for AI Compute Clusters and High-Frequency Trading (HFT) environments where low latency and high throughput are critical. It provides a seamless, plug-and-play connection between Core Switches and high-performance Storage Arrays.
Cisco, Juniper, H3C, Huawei, Alcatel, Allied Telesis, Zyxel, Brocade, Mikrotik, Extreme, Blade, D-linnk Netgear, Finisar, ZTE, Linksys, SMC, Ruijie, Avaya, 3com, Enterasys, Redeback, Planet etc.
Eliminate link flaps and cable congestion with UnitekFiber’s 100G AOCs. Every cable is verified in our compatibility lab to ensure "plug-and-play" deployment.
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For a 5-meter run, OM3 multimode fiber provides more than sufficient bandwidth (2000MHz.km) to support 100G Ethernet, making it the most cost-effective solution without the premium price of OM4.
Yes. As a main transmission medium for high-performance computers and data centers, active optical cables(AOC) ensure the stability of transportation and flexibility of application, and are more common in high-density applications.
In laboratories and teaching centers, (AOC) active optical cables connect multiple machines to the host, which not only ensures high-speed data transmission but also ensures network security.
Both data centers and cloud computing systems require higher bandwidth and lower power. 10G SFP+ in AOC (active optical cables) can well connect devices (switches, routers) with high-speed optical communication ports.
Digital signage is a good place for AOC active optical cables to show their talents, which can support 1080p resolution in an outdoor HDMI environment.
AOC(Active optical) cables are more and more widely used in high-density data centers due to the advantages of long transmission distance, fast transmission rate and convenient use. UnitekFiber supplies various types of active optical cables with high stability and reliability.
Tpically no, due to different electrical signaling (4x25G vs 4x10G). However, some dual-speed ports can be configured via CLI—contact our tech team for specific hardware checks.
Yes, our 100G AOC is fully compliant with IEEE 802.3bm and requires Host RS-FEC to be enabled on the switch for optimized performance and link stability.
Economical, arrived fast, tested out with good numbers after installation. Stripping and polishing was normal.
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