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Small metallic SFP28 transceiver module with LC duplex port, silver finish, new condition

HP

HP 845398-B21 25Gb SFP28 Transceiver 100m

SKU CH-WKCE-ZW63B

25 Gb/s SFP28 transceiver delivers 2.5× bandwidth over 10 GbE up to 100 m on multi-mode fiber with LC duplex connector and 3.5 W max power

  • 5× bandwidth over 10GbE cuts cable and port count
  • 25Gb/s throughput up to 100 m on multi-mode fibre
  • LC duplex connector for direct 25GBase-SR links
  • Power draw limited to 3.5 W per module
  • New HPE 845398-B21 SFP28 transceiver ready for data-centre deployment

What it is

The HP 845398-B21 is a 25Gb SFP28 transceiver built for data-center networking. It delivers 2.5 times the bandwidth of 10GbE links while cutting the number of cables and ports needed for the same throughput. New condition and ready for deployment in high-density interconnects.

Distance and fiber

This module reaches 100 metres over multi-mode duplex fiber using an LC connector and 25GBase-SR signalling. The 25 Gb/s rate is the single figure that decides whether the part matches the link design; shorter or longer reach optics will not work in its place.

Install notes

The transceiver slots into a standard SFP28 cage and locks with the LC duplex patch cord. Handle the optical interfaces carefully — contamination on the ferrules is the most common cause of link errors. Power draw reaches 3.5W, so verify the host port can supply it.

How it compares

Measured against everything we stock in Home Protection & Access Devices, at today’s prices. Recalculated every night.

Price $775.99
Pricier than about 91% of the 1,270 comparable items (median $64.99).

Specifications

No published specifications for this item yet.

Questions about this item

What does 25Gb/s throughput mean when the transceiver is installed in a switch?

The module delivers 2.5 times the bandwidth of 10GbE, so fewer cables and ports are needed to reach the same aggregate throughput.

Which interface standard does the SFP28 use and what distance does it support?

It uses the 25GBase-SR standard with an LC duplex connector and reaches up to 100 m over multi-mode fiber.

What physical slot and fiber type are required to mount this transceiver?

It fits a standard SFP28 cage and requires multi-mode duplex fiber with LC connectors.

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