455883-B21 - HPE BLC 10GB SR SFP+ Option

HPE 455883-B21 — BladeSystem c-Class 10Gb SFP+ SR Transceiver (MMF, 850nm)

What it is

A 10GbE SFP+ short-reach (SR) optical transceiver for HPE/Aruba networking gear.
455883-B21 is the common 10GBASE-SR optic for multimode fiber, used for in-rack, closet-to-closet, or short campus uplinks where you want reliable 10G over MMF.

Why buyers pick 455883-B21 (plain English)

• Standard short-reach 10G fiber uplink
  The default optic for “inside the building” 10G links.

• Runs on common multimode cabling
  Works with OM3/OM4, so installs are easy and cost-effective.

• HPE-coded for clean compatibility
  A safe choice when customers want first-party optics for support and interoperability.

• Optical health visibility
  Supports digital diagnostics so you can read Tx/Rx power levels on the switch.

60-second spec box (455883-B21)

Form factor

• SFP+ (10GbE)

Type / standard

• 10GBASE-SR (Short Reach)

Fiber / connector

• Multimode fiber (MMF)

• Duplex LC connector

Wavelength

• 850 nm

Max distance (typical)

• Up to 300 m on OM3 MMF

• Up to 400 m on OM4 MMF

Diagnostics

• Digital Optical Monitoring (DOM/DDM)

Use case

• 10G switch-to-switch or switch-to-server links over MMF

Where it fits (and when to choose something else)

Perfect for:

• Data center and campus 10G SR uplinks

• Rack-to-rack or closet-to-closet runs on multimode fiber

• Access-to-aggregation / TOR-to-spine over MMF

Choose something else if:

• You need longer reach → use 10GBASE-LR (single-mode, ~10 km)

• You’re only going a few meters in-rack → SFP+ DAC is cheaper

TL;DR

455883-B21 is the HPE 10G SFP+ SR multimode optic:
850nm, duplex-LC, ~300m on OM3 / ~400m on OM4 — the standard short-reach 10G transceiver for HPE/Aruba networks.