Arista Networks CAB-S-S-25G-3M Compatible 25G SFP28 Passive Copper Twinax Cable, 3m (10ft)

This CAB-S-S-25G-3M compatible DAC cable provides a 25G direct connection for Arista Networks equipment in a fixed 3m (10ft) configuration. The SFP28 to SFP28 assembly integrates both ends and the cable, giving data-center designers one defined product to evaluate for reach, rack layout, airflow and host compatibility.

OEM Part Number: CAB-S-S-25G-3MHT Part Number: CAB-S-S-25G-3M

Product Highlights

Compatible alternative to Arista Networks CAB-S-S-25G-3M
25G connectivity at 25Gbps
Interface configuration: SFP28 to SFP28
Fixed length and part number: 3m (10ft), CAB-S-S-25G-3M
Conductor specification: 30AWG
Minimum bend radius: 21.25mm

Specifications

HT Part Number	CAB-S-S-25G-3M
Arista Networks Compatible	CAB-S-S-25G-3M
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.

Data-Center Design and Airflow

Select the assembly by both reach and rack layout. A direct connection removes separate module-and-patch-cord interfaces, but it still needs a bend-safe pathway and clear connector access. Keep cable bundles from blocking front-panel airflow, account for the listed interface power where applicable and choose a length that supports maintenance without leaving an unmanaged coil. For this assembly, the listed conductor specification is 30AWG; the minimum bend radius is 21.25mm; the jacket material is PVC (OFNR).

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

CAB-S-S-25G-3M occupies the middle of this family between CAB-S-S-25G-2.5M at 2.5m (8ft) and CAB-S-S-25G-4M 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.

Quality Assurance and Packaging

Each cable receives connector inspection and a functional link check before it is coiled with bend-safe slack and packed. Protective materials shield the connector housings during transport. Rack or project labels are available to keep length, part number and installation destination aligned. Standard protective packing is used by default, with project documentation arranged when requested.

Ordering Information

Provide the OEM reference, HT part number, fixed length and quantity, together with the intended host interfaces. Rack-based quantities and packaging instructions can be included for larger deployments. Other lengths are separate products and should be entered on their own order lines. Quantity and any labeling instructions should be attached specifically to CAB-S-S-25G-3M.

Arista Networks Compatibility and Factory Testing

Compatibility confirmation combines host identification with actual link establishment and diagnostic checks. The assembly is prepared for the stated OEM reference rather than selected only by connector shape. For a new data-center deployment, the equipment model, port mode and software release provide the most useful basis for a pre-order review. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.

Frequently Asked Questions

Is this an original Arista Networks cable?

No. It is an HT-manufactured compatible alternative for equipment that specifies Arista Networks CAB-S-S-25G-3M.

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.

Can different brands be connected with the same assembly?

Only where both hosts explicitly support the complete interface and compatibility arrangement. Document each end and select the appropriate brand-specific product when required.

Does this order code cover multiple lengths?

No. CAB-S-S-25G-3M refers here to 3m (10ft). Every other verified length has a separate part number and page in the length list.

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. Delivery can be arranged by courier, air freight or sea freight, and goods may instead be handed to an appointed forwarder or shipped on the customer’s courier account.