JD119B - HPE X120 1G SFP LC LX Transceiver

HPE JD119B — X120 1G SFP LC LX Transceiver Module

What it is

JD119B is an HPE 1 Gigabit Ethernet SFP transceiver designed for use with HPE X120 Series switches and other SFP-capable network equipment.
It provides long-reach single-mode fiber connectivity using the standard LX optic, ideal for uplinks, building-to-building links, and longer-distance fiber connections.

Why buyers pick JD119B (plain English)

Long-distance Gigabit fiber
Supports 1GbE over single-mode fiber, extending link reach far beyond copper or short-range optics.

Standard SFP form factor
Compact, hot-swappable module that fits into SFP ports on switches, routers, and servers.

LC duplex interface
Uses common LC connectors for easy fiber connections and broad interoperability.

Enterprise-ready compatibility
Works with HPE X120 Series and other SFP-enabled platforms for reliable network uplinks.

Cost-effective long reach
Provides affordable extended fiber connectivity without expensive optics or modules.

60-second spec box (JD119B)

Form factor
SFP (Small Form-Factor Pluggable)

Speed / protocol
Gigabit Ethernet (1000Base-LX)

Fiber type
Single-mode fiber (SMF)

Wavelength
1310 nm

Connector
LC duplex

Max distance
Up to ~10 km (fiber dependent)

Use case
Long-reach 1GbE uplinks, campus and building-to-building fiber links.

Where it fits (and when to choose something else)

Perfect for:

• HPE X120 Series and other SFP-capable switches

• Long-distance fiber connections

• Campus and building-to-building links

• Fiber uplinks where copper isn’t suitable

Choose something else if:

• You need short-reach fiber → SX optics

• You need higher speeds → 10G SFP+ modules

• You need multimode fiber → multimode transceivers

TL;DR

JD119B is HPE’s 1G SFP LC LX transceiver:
a single-mode fiber optic module designed for extended-distance Gigabit Ethernet uplinks and campus links.