UnitekFiber 25G SFP28 AOC active optical cable is composed of optical fiber transceiver devices at both ends and OM3 or OM4 multimode fibers of different lengths. The transceiver devices at both ends can provide photoelectric conversion and optical transmission functions, which ensure the stability of data transmission and the flexibility of applications.
The 25G SFP28 Active Optical Cable (AOC) is a high-performance, cost-effective interconnect solution for 25Gbps Ethernet and 5G wireless front-haul networks. This 3-meter AOC integrates SFP28 transceivers with OM3 multimode fiber, delivering a full 25.78Gbps line rate with significantly lower power consumption (< 1.0W per end) than copper alternatives. It is the preferred choice for 5G database systems and high-density server-to-switch links where reliability and low latency are non-negotiable.
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
As we move from 10G to 25G, the signal-to-noise ratio becomes much tighter. AOC technology is essential for maintaining link stability over 3 meters.
| Feature | 25G SFP28 AOC (3m) | 25G SFP28 DAC (Copper) |
| Transmission Rate | 25.78 Gbps | 25.78 Gbps |
| Media Type | 850nm VCSEL (Fiber) | Twinax Copper |
| Power Consumption | < 1.0W per port | ~0.1W (but high port heat) |
| Bend Radius | 30mm (Highly Flexible) | 50mm+ (Stiff/Bulky) |
| EMI Immunity | Excellent (Immune to noise) | Moderate (Prone to interference) |
| Standard Compliance | IEEE 802.3by / SFF-8402 | IEEE 802.3by |
For more differences between AOC and DAC
In 5G database applications, massive small-packet transfers require ultra-low latency. Our 25G AOC eliminates the electrical skin effect found in 25G copper DACs, reducing the jitter budget and ensuring that data reaches the CPU with minimal delay. Its 3.0mm LSZH jacket is also perfect for the narrow cable conduits used in 5G telco cabinets.
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 25G SFP28 AOC is the backbone of 5G Front-haul (CPRI/eCPRI), High-Performance Computing (HPC), and Cloud Storage networks. It bridges the gap between 10G and 100G, providing a scalable path for growing enterprise databases. Learn more about our
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.
Minimize signal drops and maximize your 5G database uptime with UnitekFiber. We provide 100% pre-shipment testing and customizable lengths to fit your specific rack layout.
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Most 25G SFP28 AOCs can be configured to run at 10Gbps, but the port must support dual-rate or be manually set via the switch's CLI. UnitekFiber offers dual-rate 10G/25G AOCs for specific transition projects.
5G equipment often operates in environments with high electromagnetic interference (EMI). Unlike copper DACs, AOCs are made of fiber, which is immune to EMI, ensuring stable data transmission near powerful radio antennas.
Yes, per IEEE 802.3by standards, RS-FEC (Reed-Solomon FEC) or Base-R FEC should be enabled on the host switch to ensure a reliable 25G link.
Active Optical Cables (AOC) are optical fiber cables with fiber optic transceivers installed at both ends. The main components are divided into two parts: optical circuit and circuit.
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.
Great fiber. Keep me regular. Worked as intended.
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