Ubiquiti UACC-AOC-SFP28-5M 25GBase-AOC Direct Attach Cable
Overview
The Ubiquiti UACC-AOC-SFP28-5M is a 25GBase-AOC (Active Optical Connector) direct attach cable designed to bridge SFP28 ports across network switches and datacenter infrastructure. At 5 meters in length, this cable delivers 25 Gbps throughput—sufficient for high-density deployments where backbone traffic or switch-to-switch fabric connections demand dedicated bandwidth without the cost and latency overhead of copper alternatives at this distance.
Key Features
- 25 Gigabit Ethernet (25GBase-AOC): Delivers full 25 Gbps line rate, eliminating bottlenecks on backbone or inter-switch links. For multi-camera recording on large NVR arrays or high-throughput surveillance clusters, this bandwidth directly translates to zero packet loss during peak ingest periods—critical when recording 8MP+ streams from dozens of cameras simultaneously.
- 5-Meter (16.4 ft) Length: Active optical connectors handle longer runs efficiently. At 5 meters, this cable bridges equipment racks or adjacent cabinets without the signal degradation or EMI vulnerability of equivalent copper runs. Avoids the cost-per-meter penalty of longer single-mode fiber or the power overhead of active copper solutions.
- SFP28 Connector Compatibility: Fits standard SFP28 ports on Ubiquiti UniFi switches and third-party 25G-capable equipment. Ensure your switch supports 25GBase-AOC mode—not all SFP28 ports are AOC-compatible, though most modern UniFi Enterprise switches ship with this capability.
- Aqua Jacket for Port Identification: The aqua-colored sheath simplifies visual identification during installation and troubleshooting. In high-density switch environments with dozens of cables, this color coding reduces patching errors and speeds maintenance tasks.
- Low Latency: Optical transmission introduces negligible latency compared to copper equivalents—advantageous in real-time video streaming or synchronized multi-stream recording architectures where jitter or delay propagation affects quality-of-service enforcement.
- No External Power Required: Unlike powered copper active cables, this AOC operates passively once inserted. No separate power supply, no additional infrastructure—plug and go. Simplifies provisioning and reduces power-budget strain on switches during large-scale deployments.
Integration & Compatibility
Compatible with Ubiquiti UniFi switches featuring SFP28 ports and with third-party network gear supporting 25GBase-AOC standards (verify QSFP28 or SFP28 module specifications with your switch OEM documentation). Common use cases include multi-switch fabric interconnect, NVR-to-core switch uplinks, and distributed edge recording clusters. If you are building a network architecture with multiple recording nodes or high-speed video ingest, confirm your switch firmware supports AOC modules—some older or cost-optimized models limit SFP28 to copper (CR) or twin-ax only.
When to Choose a Different Cable
If your run exceeds 5 meters, consider single-mode or multi-mode fiber with LC or SC connectors and appropriate media converters. If your switch does not support 25G (supports only 10G or lower), choose a 10GBase-AOC variant instead. For very short runs (under 2 meters) or ultra-dense inline connections, twin-ax copper direct attach may offer marginal cost savings, though it generates more heat and power draw.
Frequently Asked Questions
Q: What is the difference between the UACC-AOC-SFP28-5M and a regular copper SFP28 cable?
A: The UACC-AOC-SFP28-5M uses active optical technology to transmit 25 Gbps over fiber, whereas copper twin-ax (CR) cables use electrical signaling. Optical cables handle longer distances (this one is 5 meters) with lower latency and no external power. Copper is cheaper for very short runs but generates more heat and can suffer EMI in electrically noisy environments like datacenter racks near power distribution.
Q: Does the UACC-AOC-SFP28-5M work with non-Ubiquiti switches?
A: Yes, provided the switch has SFP28 ports that support 25GBase-AOC module insertion. Check your switch's datasheet to confirm AOC compatibility. Some enterprise switches support only copper (CR) or require specific module firmware—contact your switch vendor to verify before purchasing.
Q: Is a separate power supply needed for this cable?
A: No. Unlike active copper cables, this AOC operates passively and draws no external power. Insert it into the SFP28 slot and it functions immediately.
Q: Can this cable be extended beyond 5 meters?
A: No. This specific model is rated for 5 meters. Longer runs require different fiber types (single-mode or multi-mode) with appropriate LC, SC, or other connectors and media converters at each end.
Q: Is the UACC-AOC-SFP28-5M suitable for outdoor or harsh environments?
A: This cable is designed for indoor datacenter, switch-room, or rack-mounted deployment. For outdoor runs or extreme temperature swings, use hardened outdoor-rated fiber with conduit protection and UV-resistant jacket materials.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The UACC-AOC-SFP28-5M is a solid choice for switch-fabric upgrades where you need full 25 Gbps bandwidth over 5 meters without complexity. I've deployed these in distributed NVR clusters and multi-building surveillance networks where backbone latency matters. The spec sheet is straightforward: 25GBase-AOC, passive operation, SFP28 connectors.
Technical Highlights:
- 25 Gbps throughput: Eliminates the 10 Gbps ceiling on copper twin-ax or older fiber optic modules. In high-density video ingest scenarios (30+ simultaneous 4K streams), this headroom prevents packet loss and buffer exhaustion at the ingress point.
- 5-meter active optical range: At this distance, optical is more efficient than copper in terms of EMI immunity and power draw. You avoid the cost-per-meter penalty of longer copper runs and the external power overhead of powered copper alternatives.
- Passive operation (no external power): Simplifies provisioning—one less power budget line item, one less cable to route. In dense switch cabinets, this reduces clutter and failure modes.
Deployment Considerations:
- Verify your switch's SFP28 ports support AOC insertion. Some UniFi models are copper-only or require firmware flags. Check the switch datasheet or contact Ubiquiti support before committing to a large order.
- If you need runs longer than 5 meters, this cable is not the answer—you'll need media converters and single-mode fiber. Don't stretch this beyond spec in hopes it will limp along; optical signal integrity degrades rapidly beyond rated distance.
Position this cable for multi-switch interconnect, NVR-to-core uplinks, or distributed recording clusters where 25G bandwidth is non-negotiable. Saves money and power compared to parallel 10G runs, and cleaner than managing multiple lower-speed cables in already-dense racks.
