QSFP+ to 4 duplex LC-40G-AOC-20M66FT 40G QSFP+ to 4 Duplex LC Active Optical Breakout Cable, 20m (66ft)

This 20m (66ft) QSFP+ to 4 duplex LC-40G-AOC-20M66FT compatible assembly provides 40G AOC connectivity for Generic interfaces in a QSFP+ to 4 duplex LC configuration. It is supplied as one complete cable, with specifications and installation guidance that help high-density racks balance reach, connector access and airflow while retaining the exact OEM reference required by the host.
OEM Part Number: QSFP+ to 4 duplex LC-40G-AOC-20M66FTHT Part Number: QSFP+ to 4 duplex LC-40G-AOC-20M66FT
Product Highlights
- HT-manufactured AOC assembly in 20m (66ft)
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to 4 duplex LC
- Fixed length and part number: 20m (66ft), QSFP+ to 4 duplex LC-40G-AOC-20M66FT
- Minimum bend radius: 30mm
Specifications
| HT Part Number | QSFP+ to 4 duplex LC-40G-AOC-20M66FT |
|---|---|
| Manufacturer | HT |
| Connector Type | QSFP+ to 4 duplex LC |
| Max Data Rate | 40Gbps |
| Minimum Bend Radius | 30mm |
| Fiber Type | OM3 Multimode Fiber (MMF) |
| Cable Length | 20m (65.62ft) |
| Jacket Material | OFNP |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 10G/40Gigabit Ethernet or Fibre Channel |
Cable Construction and Routing
This assembly uses OFNP jacket, minimum bend radius 30mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.
High-Density Rack Integration
In a densely populated rack, connector access and airflow are part of the link design. Choose the shortest length that follows the managed path comfortably, avoid tight bundles around the connector housings and preserve room for latch operation. Where power consumption is listed, include every populated interface in the host thermal budget rather than assessing a single cable in isolation. For this assembly, the minimum bend radius is 30mm; the jacket material is OFNP.
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include 10G/40Gigabit Ethernet or Fibre Channel. Confirm that the host firmware and port configuration support the same operating mode.
Breakout Port Mapping
The QSFP+ to 4 duplex LC configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.
Integrated Optical Assembly
The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.
Length Selection and Installation Planning
The 20m (66ft) reach of QSFP+ to 4 duplex LC-40G-AOC-20M66FT is useful only when the managed pathway requires it; straight-line distance between ports is not a sufficient measurement. Check the route around rack rails, cable managers and maintenance clearances, then protect the integrated optical cable and both optical engines from tight bends and unsupported spans. Within this family, QSFP+ to 4 duplex LC-40G-AOC-15M49FT is shorter at 15m (49ft), while QSFP+ to 4 duplex LC-40G-AOC-30M98FT is the next longer choice at 30m (98ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Position Within the Length Range
QSFP+ to 4 duplex LC-40G-AOC-20M66FT occupies the middle of this family between QSFP+ to 4 duplex LC-40G-AOC-15M49FT at 15m (49ft) and QSFP+ to 4 duplex LC-40G-AOC-30M98FT at 30m (98ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 10m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Quality Assurance and Packaging
Each assembly receives a visual connector inspection and functional link check before it is coiled and protected. Packaging is selected to avoid compressing the cable into a tight bundle, and optional rack-based labels help maintain an orderly installation when many identical interfaces are populated together. Neutral packaging and customer-specific packing documentation are available on request.
Ordering Information
Provide the exact part number, length, quantity and target interface density. For multi-rack projects, list each length separately and identify any preferred carton grouping. Host model and software information can be included for a compatibility review before production or dispatch. Keep QSFP+ to 4 duplex LC-40G-AOC-20M66FT associated with 20m (66ft) throughout the order and receiving record.
Generic Compatibility and Factory Testing
The assembly is evaluated for host recognition and stable link operation, with diagnostics checked where the interface provides them. This approach verifies more than electrical or optical continuity. Exact platform and firmware information remains valuable in high-density deployments because port mode and qualification policy can differ within the same connector family. Both connectors are examined before the operating test, which includes receive activity and diagnostic indications.
Frequently Asked Questions
Is this an original equipment manufacturer cable?
No. It is manufactured by HT under our own manufacturer identity.
Can excess cable be folded into a compact bundle?
No. Use a supported, bend-safe service loop and observe the listed minimum bend radius. Do not crease the cable or tighten ties around the connector boots.
Will any matching connector operate at the same speed?
Not necessarily. Both hosts must support the stated rate, identification, lane mapping and any required breakout configuration; mechanical compatibility alone is insufficient.
What details assist a compatibility review?
Provide the equipment manufacturer, model, port type, hardware revision and software release, together with the OEM reference, required length and quantity.
Shipping and Lead Time
Available stock is normally prepared for dispatch within one to three working days, while larger production requirements are scheduled with the order. Delivery can be arranged by courier, air freight or sea freight, and goods may instead be handed to an appointed forwarder or shipped on the customer’s courier account.
QSFP+ to 4 duplex LC-40G-AOC-20M66FT