Cisco QSFP-4 x 10G-AC5M Compatible 40G QSFP+ to 4 x 10G SFP+ Active Copper Breakout Cable, 5m (16ft)
For buyers working from an equipment parts list, QSFP-4 x 10G-AC5M identifies more than a connector style. It refers here to a 5m (16ft) ACC cable for Cisco hosts, supporting 40G operation with QSFP+ to SFP+. The sections below separate the OEM cross-reference, physical specification and HT factory checks for straightforward purchasing review.
OEM Part Number: QSFP-4 x 10G-AC5MHT Part Number: QSFP-4 x 10G-AC5M
Product Highlights
- Compatible alternative to Cisco QSFP-4 x 10G-AC5M
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to SFP+
- Fixed length and part number: 5m (16ft), QSFP-4 x 10G-AC5M
- Cable construction: Active Twinax
- Conductor specification: 28AWG
- Maximum power consumption: ≤1.8W
- Minimum bend radius: 40mm
Specifications
| HT Part Number | QSFP-4 x 10G-AC5M |
|---|---|
| Cisco Compatible | QSFP-4X10G-AC5M |
| Manufacturer | HT |
| Form Factor | QSFP+ to SFP+ |
| Max Data Rate | 40Gbps |
| Media | Copper |
| Cable Type | Active Twinax |
| Cable Length | 5m (16ft) |
| Wire AWG | 28AWG |
| Minimum Bend Radius | 40mm |
| Power Consumption | ≤1.8W |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8431, SFF-8432, SFF-8472 SFP+ MSA, SFF-8436 QSFP+ MSA |
Power and Thermal Planning
The rated power consumption is ≤1.8W. Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.
Cable Construction and Routing
This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 40mm. 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.
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include SFF-8431, SFF-8432, SFF-8472 SFP+ MSA, SFF-8436 QSFP+ MSA. Confirm that the host firmware and port configuration support the same operating mode.
Breakout Port Mapping
The QSFP+ to SFP+ 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.
Length Selection and Installation Planning
The 5m (16ft) length gives QSFP-4 x 10G-AC5M more freedom for adjacent-rack and row-end deployments. Longer copper runs need particular attention to routing weight and bend control; the ACC specification and host support must still match the intended link.
Position Within the Length Range
QSFP-4 x 10G-AC5M occupies the middle of this family between QSFP-4 x 10G-AC3M at 3m (10ft) and QSFP-4 x 10G-AC7M at 7m (23ft). It adds 2m over the shorter option for extra routing clearance, while the next longer version adds another 2m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Procurement and Port-Mapping Review
A useful purchase order should identify the host platform, the expected OEM code and the exact cable length as separate pieces of information. This prevents a physically similar assembly from being substituted when the port identification or reach is different. For mixed-length installations, prepare one order line per part number and reconcile each delivered cable with its intended pair of ports. For this assembly, the listed conductor specification is 28AWG; the minimum bend radius is 40mm; the stated power consumption is ≤1.8W; the jacket material is PVC (OFNR).
Cisco Compatibility and Factory Testing
Our procurement-oriented compatibility check begins with the OEM reference and ends with a live host link. We record the physical length separately from the identification configuration, so the cable supplied for this page remains the stated version rather than a generic length substitute. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Ordering Information
For a clear bill of materials, quote the OEM reference, HT part number, length and quantity on the same line. Add the switch or server model and software release when a pre-order review is required; project labels can repeat those details for receiving and installation teams. Keep QSFP-4 x 10G-AC5M associated with 5m (16ft) throughout the order and receiving record.
Quality Assurance and Packaging
Before packing, the assembly is checked for connector condition, identification and link operation. Cables for multi-line orders can be labelled and grouped by part number, making it easier to match each length to the procurement record without opening every protective bag. Standard protective packing is used by default, with project documentation arranged when requested.
Frequently Asked Questions
Is this an original Cisco cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies Cisco QSFP-4 x 10G-AC5M.
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
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. Worldwide courier services are available, with air or sea freight for consolidated shipments; freight-collect delivery and coordination with a customer’s logistics provider can be arranged.