R0Z25A - Aruba 1000Base direct attach cable - 3.3 ft

HPE Aruba R0Z25A — 1000BASE Direct Attach Cable (3.3 ft)

What it is

R0Z25A is an HPE Aruba 1000BASE-T direct attach copper (DAC) cable designed for short-reach Gigabit Ethernet links between network devices with 1000BASE ports.
It provides a 3.3-foot (approximately 1 m) pre-terminated copper connection that plugs directly into SFP/SFP-equipped switches, routers, or servers without the need for separate transceivers.

Why buyers pick R0Z25A (plain English)

Plug-and-play simplicity
Comes pre-terminated with compatible connectors so you don’t need separate optics — just plug it in on both ends.

Low latency, predictable performance
Direct attach copper offers reliable Gigabit connectivity with minimal delay, making it ideal for short links in racks or adjacent racks.

Cost-effective
DAC cables are typically cheaper than optics plus fiber, especially for short, fixed connections.

Energy-efficient design
No onboard optics means lower power draw compared to active optical modules.

Enterprise-validated
Built for compatibility with Aruba 1000BASE ports and widely interoperable with other standard Gigabit interfaces.

60-second spec box (R0Z25A)

Cable type
Direct Attach Copper (DAC)

Length
3.3 ft (~1 m)

Speed / protocol
1 GbE (1000BASE)

Connector
SFP/SFP-equivalent copper interfaces

Media
Copper

Use case
Short-reach Gigabit Ethernet links between switches, servers, or network devices.

Where it fits (and when to choose something else)

Perfect for:

• Switch-to-server or switch-to-switch links within the same rack

• Environments where fiber isn’t required or needed

• Predicable, low-latency Gigabit links over short distances

• Cost-sensitive 1 GbE infrastructure cabling

Choose something else if:

• You need longer distances → fiber optics (1000BASE-LX/SX)

• You want multimode or single-mode flexibility → transceivers + fiber

• You need speeds >1 GbE → 10 GbE DAC/optics

TL;DR

R0Z25A is an Aruba 1000BASE direct attach copper cable (3.3 ft):
a simple, low-latency, cost-effective plug-and-play cable for short Gigabit Ethernet connections in racks and access layers.