What optical standard does the HPE JG325A transceiver support?

The HPE JG325A transceiver supports the 40GBase-SR4 optical standard. This standard provides 40 Gigabit Ethernet connectivity over multimode fiber for short-reach applications. As an SR4 module, it is intended for use in environments where 40Gb bandwidth is required over limited distances within the specified reach.

What is the maximum supported distance for the HPE X140 40Gb QSFP+ SR4 Transceiver?

The HPE X140 40Gb QSFP+ SR4 Transceiver JG325A supports link distances of up to 150 meters. This distance rating applies to short-reach deployments, making it suitable for intra-building or data hall connections where devices are located within this range over multimode fiber.

At what wavelength does the HPE JG325A 40GBase-SR4 transceiver operate?

The HPE JG325A 40GBase-SR4 transceiver operates at an 850nm wavelength. This wavelength is typical for multimode fiber short-reach applications and aligns with standard data center and enterprise cabling designed to support high-speed optical links at 40Gb.

What form factor is the HPE X140 40Gb SR4 Transceiver JG325A?

The HPE X140 40Gb SR4 Transceiver JG325A is a QSFP+ optical transceiver. This form factor is commonly used for 40Gb Ethernet ports on network equipment and enables high port density for short-reach multimode fiber links based on the 40GBase-SR4 standard.

For what type of fiber is the 40GBase-SR4 850nm up to 150m specification intended?

The 40GBase-SR4, 850nm, up to 150m specification is intended for multimode fiber links. It defines short-reach 40Gb connectivity using an 850nm optical interface over multimode cabling, with a maximum supported distance of 150 meters in suitable fiber installations.

JG325A - HPE JG325A 40GBase-SR4 850nm up to 150m transceiver

Name: HPE JG325A 40GBase-SR4 850nm up to 150m transceiver
Brand: HPE
SKU: JG325A
Price: 555 USD
Availability: InStock

JG325A - HPE JG325A 40GBase-SR4 850nm up to 150m transceiver | US IT Hardware

Product overview

The HPE X140 40Gb QSFP+ SR4 Transceiver JG325A is a 40GBase-SR4 optical module designed for short reach 40 Gigabit Ethernet links over multimode fiber. Operating at an 850nm wavelength, this SR4 transceiver supports link distances up to 150 meters, making it suitable for structured cabling within data halls or campus environments where high bandwidth is required over moderate distances. Delivered in a QSFP+ form factor, it fits 40Gb-capable HPE networking equipment that accepts QSFP+ optical transceivers. As a 40GBase-SR4 module, it is aligned with multimode fiber deployments that prioritize high port density and efficient aggregation of 40Gb connectivity. IT procurement teams can standardize on this specific HPE model number JG325A when specifying 40Gb SR4 optics for consistent performance and streamlined fleet management in core, aggregation, or high-performance access layers.

40GBase-SR4 short-reach 40Gb Ethernet over MMF
Operates at 850nm for multimode fiber links
Supports link distances up to 150 meters
QSFP+ form factor 40Gb optical transceiver
HPE X140 series 40Gb SR4 transceiver JG325A
Designed for 40Gb multimode fiber deployments

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Form Factor
Manufacturer part #	JG325A
Brand	HPE
Condition	New
Model	JG325A
Reach	150 m
Series	HPE X140
Lane Count	4 transmit lanes and 4 receive lanes over 8 fibers
Technology	40GBase-SR4
Wavelength	850 nm
Application	40 Gigabit Ethernet links over multimode fiber
Fiber Count	12‑fiber MPO

Compatible systems

HPE QSFP+ optical transceiver for 40GBase-SR4 multimode fiber links.

HPE HPE switches and routers
Form factor: QSFP+
Compatible with HPE brand switches and routers per third-party listing.

Best for

Data center aggregation
Suitable for 40Gb aggregation links inside data centers using 40GBase-SR4 optics over multimode fiber up to 150m at 850nm.
Campus core connectivity
Supports campus core or distribution links where 40Gb bandwidth is required over multimode fiber runs up to 150m with 40GBase-SR4.
High-density QSFP+ switch uplinks
Applicable for QSFP+ uplinks on switches that need 40Gb short-reach connectivity using SR4 at 850nm over multimode fiber.
Short-reach multimode backbones
Designed for short-reach backbones over multimode fiber, leveraging 40GBase-SR4 operation at 850nm with support up to 150m.
Intra-rack or row links
Can be used for intra-rack or row links within 150m where 40Gb QSFP+ SR4 optics at 850nm are specified on HPE platforms.

Details

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Cabling Type	Multimode fiber

Product Line	X140

Product Name	HPE X140 40G QSFP+ MPO SR4 Transceiver

Product Type	Optical Transceiver

Hot Pluggable	Yes

Signaling Rate	4 x 10.3125 Gbaud lanes

Transceiver Type	40GBASE-SR4

Typical Use Case	Short‑reach 40GbE connections in data center and campus networks

Core Cladding Diameter	50/125 µm multimode fiber

Fiber Type Compatibility	OM3 and OM4 multimode fiber

Optical Modulation Format	NRZ (non‑return‑to‑zero)

Receive Center Wavelength	850 nm nominal

Transmit Center Wavelength	850 nm nominal

Maximum Distance Over OM3 Fiber	100 m

Maximum Distance Over OM4 Fiber	150 m

Transceiver Form Factor Standard	QSFP Plus (Quad Small Form‑factor Pluggable+)

Digital Diagnostics Monitoring (DDM/DOM)	Supported

Media Type	Optical fiber
Data Transfer Rate	40 Gbit/s
Optical Fiber Bandwidth Requirement	2000 MHz·km minimum at 850 nm
Compatible Fiber Bandwidth Requirement	2000 MHz·km (OM3) or higher

Supply Voltage	3.3 V DC
Maximum Power Consumption	1.8 W
Typical Power Consumption	≤ 1.5 W

Networking Ports & Interfaces

Ports	1
Connector Type	MPO, MTP
Ethernet Speed	40 GbE
Interface Type	Optical
Connector Gender	MPO female
Application Interface	40GbE port on HPE switches and routers
Total Number of Ports	1
Port Application Usage	Optical
Supported Ethernet Standard	IEEE 802.3ba 40GBASE‑SR4

HPE JG325A 40GBase-SR4 850nm up to 150m transceiver