Extreme Networks 40GB-C0.5-QSFP Compatible 40G QSFP+ Passive Copper Cable, 0.5m (2ft)
The 40GB-C0.5-QSFP compatible DAC cable provides 40G connectivity for Extreme Networks equipment over a fixed 0.5m (2ft) assembly. Both ends use the stated QSFP+ to QSFP+ arrangement. It is inspected and functionally checked before packing, with handling guidance designed to protect the connectors during installation and later service.
OEM Part Number: 40GB-C0.5-QSFPHT Part Number: 40GB-C0.5-QSFP
Product Highlights
- Compatible alternative to Extreme Networks 40GB-C0.5-QSFP
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to QSFP+
- Fixed length and part number: 0.5m (2ft), 40GB-C0.5-QSFP
- Conductor specification: 30AWG
- Minimum bend radius: 35mm
Specifications
| HT Part Number | 40GB-C0.5-QSFP |
|---|---|
| Extreme Networks Compatible | 40GB-C0.5-QSFP |
| Manufacturer | HT |
| Connector Type | QSFP+ to QSFP+ |
| Max Data Rate | 40Gbps |
| Minimum Bend Radius | 35mm |
| Wire AWG | 30AWG |
| Cable Length | 0.5m (1.64ft) |
| Jacket Material | PVC (OFNR) |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8436, QSFP+ MSA and IEEE 802.3ba |
Cable Construction and Routing
This assembly uses 30AWG conductors, PVC (OFNR) jacket, minimum bend radius 35mm. 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.
Field Installation and Maintenance
Inspect the route and both connectors before installation, then support the cable without pulling on either connector housing. During maintenance, release the latch properly rather than using the cable as a handle. Keep protection on unused ends, and if the assembly is removed for later use, coil it loosely and record its part number so the same length can be returned to service. For this assembly, the listed conductor specification is 30AWG; the minimum bend radius is 35mm; the jacket material is PVC (OFNR).
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include SFF-8436, QSFP+ MSA and IEEE 802.3ba. Confirm that the host firmware and port configuration support the same operating mode.
Passive Copper Operation
A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.
Length Selection and Installation Planning
The 0.5m (2ft) length is suited to closely aligned ports where excessive slack would obstruct airflow or complicate dressing. Measure the actual port-to-port path before choosing 40GB-C0.5-QSFP; even a short assembly must retain the specified bend radius and should never be pulled tight behind the equipment.
Position Within the Length Range
40GB-C0.5-QSFP is the shortest of 7 verified length options in this family. It is the preferred choice when the port positions are close and cable slack must be kept to a minimum. The next option is 10312 at 1m (3ft), adding 0.5m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.
Quality Assurance and Packaging
The cable and both connectors are inspected before a functional link test. Connector protection and bend-safe packing reduce handling damage during transport and storage. Customer or site labels can be added for field inventories, with different lengths separated to simplify issue and return of spare assemblies. Standard protective packing is used by default, with project documentation arranged when requested.
Extreme Networks Compatibility and Factory Testing
A field-ready cable needs both correct identification and a stable operating link. Our pre-packing check therefore includes the connectors, host recognition and link behavior. For equipment with uncertain revision history, providing the host model and software release helps identify compatibility requirements before the assembly reaches the installation site. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Frequently Asked Questions
Is this an original Extreme Networks cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies Extreme Networks 40GB-C0.5-QSFP.
Does this order code cover multiple lengths?
No. 40GB-C0.5-QSFP refers here to 0.5m (2ft). Every other verified length has a separate part number and page in the length list.
Are separate transceivers or patch leads required?
No. This is one complete direct-attach assembly. The ends are not detachable modules and should not be separated from the cable.
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.
Ordering Information
Request the cable by its exact part number and length, and state the equipment model if compatibility confirmation is needed. Site orders can list quantities by rack or installation team. Any requested label should retain the part number so a removed or spare cable can still be identified accurately. This page’s fixed configuration is 0.5m (2ft); another length must be quoted under its corresponding part number.
Shipping and Lead Time
Available stock is generally dispatched within one to three working days after order confirmation, with production lead times advised for larger quantities. 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.
