Cisco · SFP+ · 10G

SFP-10G-ER-S=

10GBASE-ER SFP+ transceiver, 1550 nm, single-mode, LC duplex

Genuine Cisco
New, factory sealed

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Tax invoiceIssued by Rabash Technologies Pte. Ltd., Singapore

SFP-10G-ER-S= at a glance

10GBASE-ER SFP+ transceiver
1550 nm over single-mode fibre (SMF)
Reach: 40 km on SMF
Connector: LC duplex
Digital optical monitoring (DOM) for light levels and temperature
Commercial temperature rating (typically 0 to 70 °C)
Genuine Cisco part, new, factory sealed

Specifications

Part number	SFP-10G-ER-S=
Brand	Cisco
Standard	10GBASE-ER
Form factor	SFP+
Data rate	10 Gb/s
Wavelength	1550 nm
Media	Single-mode fibre (SMF)
Reach	40 km on SMF
Connector	LC duplex
Digital optical monitoring	Supported
Temperature range	Commercial (COM)
Condition	New, factory sealed

Description

The S-Class counterpart of the 10GBASE-ER optic, which omits FCoE support while keeping the 1550 nm, 40 km optical profile. Operators fit it to Ethernet-only switches that need a long metro or inter-campus link at lower module cost. On spans under 20 km a 5 dB inline attenuator is recommended by the datasheet. Fibre is single-mode with duplex LC. The SFP-10G-ER-S is a SFP+ form-factor part for SFP+ ports on 10 gigabit switches, routers and server adapters. It runs over a duplex fibre pair and is specified for the commercial temperature range of 0 to 70 degrees Celsius. Its listed reach is 40 km on SMF. Check the link budget against the real fibre plant, including connectors and splices, before relying on the headline distance. Because compatibility is decided per platform and software release, confirm the exact host device in the Cisco compatibility matrix before ordering.

Typical uses

Metro and long-haul links between sites
Service-provider aggregation over dark fibre
Long campus spans beyond the 10 km class

Before you order

Confirm your switch or router model and software release support the SFP-10G-ER-S=
Use single-mode (OS2) fibre and check the link budget for the full span
On short test links an attenuator may be needed to avoid overloading the receiver
Prices exclude import duties and taxes in your country (DAP)

FAQ

What is the reach of the SFP-10G-ER-S=?

40 km on SMF.

What fibre does the SFP-10G-ER-S= use?

It runs over single-mode fibre (SMF) with a LC duplex connector at 1550 nm.

Is the SFP-10G-ER-S= genuine and what condition is it?

It is a genuine Cisco part, new, factory sealed, sold by an independent reseller and invoiced by Rabash Technologies Pte. Ltd., Singapore.

Shipping and returns

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Ships from Singapore. Delivery options are confirmed for your destination.

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Related part numbers

EX-SFP-10GE-ER 10GBASE-ER · 1550 nm · 40 km on SMF Price on request EX-SFP-10GE-LR 10GBASE-LR · 1310 nm · 10 km on SMF Price on request EX-SFP-10GE-SR 10GBASE-SR · 850 nm · 300 m on OM3 · 400 m on OM4 · 82 m on OM2 · 33 m on OM1 Price on request

Product guides & buying advice

DAC vs AOC vs optics: choosing for short linksWhen a direct-attach cable, an active optical cable or a pair of optics fits best.Read guide →How to read a Cisco part number, and what the = meansThe parts of a Cisco optic part number, the common suffixes and why the = matters.Read guide →Refurbished vs new hardwareCompare condition, accessories, inspection evidence and seller coverage before ordering.Read guide →SFP vs SFP+ vs SFP28: what fits whereThe form factors, the data rates they carry, and which modules work in which ports.Read guide →

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