CBL-QSFP-40GE-PASS-7MDell CBL-QSFP-40GE-PASS-7M Compatible 40G QSFP+ Passive Copper Cable, 7m (23ft)
This page covers one precise cable-schedule item: Dell CBL-QSFP-40GE-PASS-7M in 7m (23ft), supporting 40G operation through QSFP+ to QSFP+. The complete DAC assembly is identified separately from other lengths and includes verified specifications, change-control-friendly ordering details and live-link factory checks.
OEM Part Number: CBL-QSFP-40GE-PASS-7MHT Part Number: CBL-QSFP-40GE-PASS-7M
Product Highlights
- Compatible alternative to Dell CBL-QSFP-40GE-PASS-7M
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to QSFP+
- Fixed length and part number: 7m (23ft), CBL-QSFP-40GE-PASS-7M
- Conductor specification: 26AWG
- Minimum bend radius: 47.5mm
Specifications
| HT Part Number | CBL-QSFP-40GE-PASS-7M |
|---|---|
| Dell Compatible | CBL-QSFP-40GE-PASS-7M |
| Manufacturer | HT |
| Connector Type | QSFP+ to QSFP+ |
| Max Data Rate | 40Gbps |
| Minimum Bend Radius | 47.5mm |
| Wire AWG | 26AWG |
| Cable Length | 7m (22.97ft) |
| 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 26AWG conductors, PVC (OFNR) jacket, minimum bend radius 47.5mm. 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.
Position Within the Length Range
CBL-QSFP-40GE-PASS-7M is the longest of 7 verified length options in this family. Compared with 332-1663 at 5m (16ft), it provides 2m of additional reach for a longer vertical drop, a wider rack or an adjacent-cabinet route. Confirm that the complete path requires this length, because unused slack still needs supported, bend-safe storage.
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 26AWG; the minimum bend radius is 47.5mm; 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
Extended reach changes the installation checks for CBL-QSFP-40GE-PASS-7M. Confirm that 7m (23ft) follows the intended route without tension, then verify that intermediate supports do not squeeze the jacket or hide the connectors behind adjacent cables. Both hosts must still match the stated interface and lane configuration. The next shorter verified assembly is 332-1663 at 5m (16ft), which is the better comparison when the managed route leaves substantial unused cable.
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 CBL-QSFP-40GE-PASS-7M associated with 7m (23ft) throughout the order and receiving record.
Dell 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. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
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. Standard protective packing is used by default, with project documentation arranged when requested.
Frequently Asked Questions
Is this an original Dell cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies Dell CBL-QSFP-40GE-PASS-7M.
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.
