JG329AHPE H3C JG329A Compatible 40G QSFP+ to 4 x 10G SFP+ Passive Copper Breakout Cable, 1m (3ft)
For structured equipment cabling that specifies HPE H3C JG329A, this 1m (3ft) assembly provides a complete 40G DAC link. Its configuration is QSFP+ to 4 SFP+. The page brings together mechanical specifications, pathway considerations and compatibility verification so the product can be incorporated into a serviceable installation plan.
OEM Part Number: JG329AHT Part Number: JG329A
Product Highlights
- Compatible alternative to HPE H3C JG329A
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to 4 SFP+
- Fixed length and part number: 1m (3ft), JG329A
- Conductor specification: 30AWG
- Minimum bend radius: 21mm
Specifications
| HT Part Number | JG329A |
|---|---|
| HPE H3C Compatible | JG329A |
| Manufacturer | HT |
| Connector Type | QSFP+ to 4 SFP+ |
| Max Data Rate | 40Gbps |
| Minimum Bend Radius | 21mm |
| Wire AWG | 30AWG |
| Cable Length | 1m (3.28ft) |
| Jacket Material | PVC (OFNR) |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8436, SFF-8431 and QSFP+ MSA |
Cable Construction and Routing
This assembly uses 30AWG conductors, PVC (OFNR) jacket, minimum bend radius 21mm. 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.
Breakout Port Mapping
The QSFP+ to 4 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.
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
At 1m (3ft), JG329A is a practical choice for direct connections within one rack. Route the cable along the intended management path rather than pulling it diagonally across adjacent connectors, and leave enough clearance for insertion, removal and front-panel airflow.
Position Within the Length Range
JG329A is the shortest of 3 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 JG330A at 3m (10ft), adding 2m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.
Structured Pathways and Serviceability
Treat the direct-attach assembly as part of the permanent pathway plan even when the link is expected to be temporary. Follow the intended horizontal and vertical managers, maintain the specified bend radius and leave service access around both ports. A small, supported service allowance is preferable to excess slack concealed inside a rack or placed under cable-tie pressure. For this assembly, the listed conductor specification is 30AWG; the minimum bend radius is 21mm; 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, SFF-8431 and QSFP+ MSA. Confirm that the host firmware and port configuration support the same operating mode.
Ordering Information
Include the part number, fixed length, quantity and required pathway or rack grouping in the order information. The host model and firmware release are useful for change-controlled deployments. Different lengths should remain separate order lines so delivered labels and packing records agree with the pathway plan. Keep JG329A associated with 1m (3ft) throughout the order and receiving record.
HPE H3C Compatibility and Factory Testing
Verification covers the physical connectors, expected host identity and an operating link with available diagnostic indications. We distinguish this complete check from a simple continuity test. Platform model and software release can be reviewed in advance where the installation has strict documentation or change-control requirements. Where supported by the host, link stability and diagnostic indications are reviewed together with the established link.
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.
Quality Assurance and Packaging
After connector inspection and link verification, the assembly is coiled without tight bends and packed with end protection. Labels can cross-reference the customer cable schedule, OEM part number and length. This supports both receiving checks and later moves, adds or changes. Volume orders can include customer references on the labels and carton list.
Frequently Asked Questions
Is this an original HPE H3C cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies HPE H3C JG329A.
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.
How should an unused assembly be stored?
Protect both connector ends, keep the cable in a loose bend-safe coil and retain its part-number label so the length and compatibility identity remain traceable.
