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header-product SFP Module Extralink SFP WDM 1.25G 1310/1550nm Single mode 20km LC DDM Pair
16.99 €

SFP Module Extralink SFP WDM 1.25G 1310/1550nm Single mode 20km LC DDM Pair

SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 1
SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 2
SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 3
SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 1
SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 2
SFP Module Extralink SFP WDM 1.25G 1310/1550nm Photo 3
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SFP Module Extralink SFP WDM 1.25G 1310/1550nm Single mode 20km LC DDM Pair

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Short description

The Extralink SFP Module SFP WDM 1.25G 1310/1550nm is a single mode transceiver designed for long-distance data transmission up to 20km. It supports a maximum data transfer rate of 1250 Mbit/s and features an LC connector with DDM for monitoring. This pair of modules is FCC certified, ensuring reliable performance and compatibility in various networking applications.
Available for order: 34 pcs.
Warranty: 2 Years
SKU: 701692
Manufacturer: Extralink
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
12.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
15.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.04 kg)
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Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
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From 1.99 €
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Product information

Description

Extralink SFP 1.25G BIDI 1310/1550NM 20KM LC DDM is a single-mode fiber optical transceiver module designed for data rates of 1.25 Gbps (1.0625 Gbps) and point-to-point transmission distances up to 20 km over single-mode fiber (SMF). The module uses bidirectional operation with Tx at 1310 nm and Rx at 1550 nm and complies with Class 1 laser safety requirements.

Advantages

The Extralink SFP 1.25G BIDI offers a compact SFP form factor, low power consumption and cost-effective deployment for long-reach single-mode links. Integrated components include an FP laser transmitter, a PIN photodiode with transimpedance amplifier (TIA) and an MCU control unit, while DDM support provides diagnostic monitoring for link management.

Key specifications

  • Data rate: 1.25 Gbps (1.0625 Gbps)
  • Wavelength: Tx = 1310 nm, Rx = 1550 nm
  • Reach: up to 20 km over single-mode fiber (SMF)
  • Connector: LC
  • Form factor: SFP (small form-factor pluggable)
  • Monitoring: DDM (Digital Diagnostic Monitoring) support
  • Transmit type: FP laser
  • Receiver: PIN photodiode with TIA
  • Safety: Class 1 laser

How to use

Insert the Extralink SFP 1.25G BIDI module into a compatible SFP port on a switch, router or media converter. Ensure the LC single-mode patch cords are connected correctly: the fiber carrying the 1310 nm transmit signal from the local module must be connected to the remote module's receive port for bidirectional operation. Check that the host device supports 1.25 Gbps and SFP modules; enable any required port settings and verify link and DDM status in the device interface.

Recommendations

Use ITU-T compliant SMF and high-quality LC connectors to achieve the specified 20 km reach. Verify compatibility with your network equipment vendor list before deployment and avoid bending or stressing the fiber to maintain link performance and module longevity.

Specifications

Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1250 Mbit/s
SFP transceiver type:
Fiber optic
All features

Packaging data

Number of products included: The number of products that are included in the package.
2 pc(s)

Sustainability

Sustainability certificates:
CE, RoHS

Certificates

Certification:
FCC

Performance

Rx wavelength (min):
1550 nm
Tx wavelength (min):
1310 nm
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
20000 m
Fiber optic connector: This terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all there have been about 100 types of optic fiber connectors produced.
LC
Single-mode fiber (SMF) supported:
Yes
Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1250 Mbit/s
SFP transceiver type:
Fiber optic

Description

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Customer reviews

Customer questions

FAQ

How much does the SFP Module Extralink SFP WDM 1.25G 1310/1550nm cost, and is it available for purchase?

The price is 16.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 12.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Extralink products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Extralink service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, sfp transceiver type, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.