Cisco SFP-H25G-CU3M Compatible 25G SFP28 Passive Copper Twinax Cable, 3m (10ft)
For buyers working from an equipment parts list, SFP-H25G-CU3M identifies more than a connector style. It refers here to a 3m (10ft) DAC cable for Cisco hosts, supporting 25G operation with SFP28 to SFP28. The sections below separate the OEM cross-reference, physical specification and HT factory checks for straightforward purchasing review.
OEM Part Number: SFP-H25G-CU3MHT Part Number: SFP-H25G-CU3M
Product Highlights
- Compatible alternative to Cisco SFP-H25G-CU3M
- 25G connectivity at 25Gbps
- Interface configuration: SFP28 to SFP28
- Fixed length and part number: 3m (10ft), SFP-H25G-CU3M
- Conductor specification: 30AWG
- Minimum bend radius: 21.25mm
Specifications
| HT Part Number | SFP-H25G-CU3M |
|---|---|
| Cisco Compatible | SFP-H25G-CU3M |
| Manufacturer | HT |
| Connector Type | SFP28 to SFP28 |
| Max Data Rate | 25Gbps |
| Minimum Bend Radius | 21.25mm |
| Wire AWG | 30AWG |
| Cable Length | 3m (9.84ft) |
| Jacket Material | PVC (OFNR) |
| Typical Power Consumption | ≤0.5W |
| Power Supply | 3.3V |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3, SFP28 MSA, SFF-8402, Infiniband, EIA 364-1000 |
| Application | 25G Ethernet, Data Center, 5G Wireless |
Cable Construction and Routing
This assembly uses 30AWG conductors, PVC (OFNR) jacket, minimum bend radius 21.25mm. 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 25G Ethernet, Data Center, 5G Wireless. Listed interface and protocol references include IEEE 802.3, SFP28 MSA, SFF-8402, Infiniband, EIA 364-1000. 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
At 3m (10ft), this assembly can bridge non-aligned ports or adjacent racks while remaining a single direct-attach link. Support longer horizontal runs with suitable cable management and preserve space for cooling and future maintenance.
Position Within the Length Range
SFP-H25G-CU3M occupies the middle of this family between SFP-H25G-CU2.5M at 2.5m (8ft) and SFP-H25G-CU4M at 4m (13ft). It adds 0.5m over the shorter option for extra routing clearance, while the next longer version adds another 1m. 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 30AWG; the minimum bend radius is 21.25mm; 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. Quantity and any labeling instructions should be attached specifically to SFP-H25G-CU3M.
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 SFP-H25G-CU3M.
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.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. International express, air cargo and sea freight can be selected according to destination and carton volume; customer courier accounts and nominated forwarders are also accepted.