470-AATO: Dell Networking Cable QSFP+ to QSFP+ 40GbE Passive Direct Attach Copper 1m
Also listed as: 027G2Y, 27G2Y, CBL-QSFP-40G-1M, FC-40G-QSFP-01 · made by Amphenol
The Dell 470-AATO is a Dell Networking Cable QSFP+ to QSFP+ 40GbE Passive Direct Attach Copper 1m delivering 40GbE physical connectivity over 1.0m for Dell R730, R740, S4148F-ON, S5248F-ON systems.
Specifications
| Part number | 470-AATO |
|---|---|
| Brand | Dell |
| Made by | Amphenol |
| Type | Cables |
| Other numbers | 027G2Y, 27G2Y, CBL-QSFP-40G-1M, FC-40G-QSFP-01 |
| Status | current |
| Interface | QSFP+ to QSFP+ Direct Attach Copper |
| Speed | 40GbE |
| Length m | 1 |
| Form factor | Twinaxial Passive DAC (30 AWG) |
| Tdp (W) | 0.1 |
About the 470-AATO
The Dell 470-AATO is a Dell Networking Cable QSFP+ to QSFP+ 40GbE Passive Direct Attach Copper 1m engineered for high-speed interconnectivity over a 1.0-meter span at 40GbE. Utilizing precision twinaxial copper conductors terminated with fixed connectors, the 470-AATO provides low-latency physical transport while consuming less than 0.1W of power. In Dell's infrastructure catalog, 470-AATO connects PowerEdge servers to top-of-rack switches and storage arrays.
Compatibility
The 470-AATO cable is compatible with Dell PowerEdge servers and PowerSwitch systems including R730, R740, S4148F-ON, S5248F-ON. The 470-AATO connects directly into matching 40GbE ports without intermediate transceivers. Operating over 1.0 meters, the 470-AATO complies with standard SFF specifications and requires appropriate Forward Error Correction settings on host interfaces.
How to identify a genuine unit
Genuine Dell 470-AATO cable assemblies feature a white printed flag label displaying DP/N 027G2Y, cable length 1.0M, and Dell Networking branding. Connected switch operating systems such as Dell OS10 read the internal 470-AATO EEPROM, verifying authentic Dell serialization and cable telemetry.
Buying used
When evaluating a used 470-AATO cable, inspect the twinaxial outer jacketing for severe kinks, crushed shielding, or conductor strain near the molded connector hoods. Test both metal connector shells on the 470-AATO to ensure that pull-release latches engage firmly into host cages. Verify that connected 470-AATO ports establish a stable physical link without packet errors.
Fits these models
Check compatibility with Dell
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Dell has tested with the Dell 470-AATO.
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
Equivalent part numbers
- Amphenol NDACAF-0001 Amphenol 40GbE QSFP+ Passive Direct Attach Copper 1m
Buying or selling 470-AATO?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell Networking QSFP+ 40GbE Passive DAC 1m Specifications, checked 2026-10-27