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header-product Fiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nm
18.49 €

Fiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nm

Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 1
Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 2
Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 3
Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 1
Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 2
Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s Photo 3
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Fiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nm

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Short description

The D-Link DEM-311GT is a high-performance SFP transceiver module designed for fiber optic networks. It supports a maximum data transfer rate of 1000 Mbit/s and operates at a wavelength of 850 nm. This module is ideal for connecting network devices over short distances, ensuring reliable and fast data transmission. Its compact design and compatibility with various SFP interfaces make it a versatile choice for enhancing network performance.
Available at price 18.49 €: 30 pcs.
Total available for order: 177 pcs.
Warranty: 2 Years
SKU: 4739
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
07.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
12.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.05 kg)
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From 1.99 €
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Product information

Description

The D-Link DEM-311GT is an SFP/mini-GBIC multimode fiber transceiver designed for Gigabit Ethernet links. It operates at 850 nm and supports full-duplex Gigabit speeds over multimode fiber, providing reach up to 220 m on 62.5 µm fiber and up to 550 m on 50 µm fiber. The transceiver has a metal housing for improved durability and EMI reduction, and it supports hot-pluggable operation.

Advantages

The DEM-311GT combines compact SFP form factor with high performance and cost-effective design. Metal casing enhances mechanical robustness and minimizes electromagnetic interference. Hot-pluggable capability simplifies installation and maintenance, and the product is covered by a standard two-year warranty with access to technical support.

Key specifications

  • Form factor: SFP / mini-GBIC
  • Wavelength: 850 nm
  • Fiber type: Multimode fiber (MMF)
  • Data rate: 1 Gbps (full duplex)
  • Maximum distance: 220 m on 62.5 µm MMF; 550 m on 50 µm MMF
  • Housing: Metal (EMI shielding)
  • Hot-pluggable: Yes
  • Warranty: 2 years

How to use

Insert the DEM-311GT SFP transceiver into a compatible SFP slot on a switch or router while the device is powered on or off, as it supports hot-pluggable operation. Connect the appropriate multimode fiber patch cord (62.5 µm or 50 µm) to the transceiver and secure connections at both ends. Verify link status on the network device and configure the port for Gigabit full-duplex operation if required by the switch or router settings.

Rekomendations

Use the DEM-311GT with compatible D-Link or industry-standard SFP ports and select the correct multimode fiber type to achieve the specified reach. For reliable performance, follow manufacturer guidelines for handling fiber connectors and observe ESD precautions during installation.

Specifications

Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1000 Mbit/s
SFP transceiver type:
Fiber optic
All features

Logistics data

Harmonized System (HS) code:
85369010
Pallet gross width:
1220 mm
Pallet gross length:
1020 mm
Shipping (inner) case width:
260 mm
Shipping (inner) case length:
360 mm
Shipping (inner) case height:
310 mm
Shipping (inner) case gross weight:
4200 g
Products per shipping (inner) case:
50 pc(s)
Shipping (inner) case net weight:
3200 g
Pallet gross weight (air):
246800 g
Master (outer) cases per pallet (air):
54 pc(s)
Products per pallet (air):
2700 pc(s)
Pallet height (air):
1990 mm
Pallet gross weight (sea):
246800 g
Master (outer) cases per pallet (sea):
54 pc(s)
Products per pallet (sea):
2700 pc(s)
Pallet height (sea):
1990 mm

Packaging data

Package weight: Weight of the packaged product.
64 g
Package height: The distance from the top to the bottom of the packaging.
49 mm
Package depth: The distance from the front to the back of the packaging.
131 mm
Package width: The distance from one side of the packaging to the other.
74 mm

Operational conditions

Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 85
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Features

Hot-swap:
Yes

Performance

Duplex system: A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously.
Full
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.3x
Wavelength: The distance over which a wave repeats itself. The wavelength determines the characteristics of the wave e.g. red light has a different wavelength to blue light.
850 nm
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
550 m
SFP transceiver standard:
SX
Fiber cable diameters supported (core/cladding):
50/125
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
Multi-mode fiber (MMF) supported:
Yes
Single-mode fiber (SMF) supported:
No
Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1000 Mbit/s
SFP transceiver type:
Fiber optic

Description

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Product comparison

This overview compares the Fiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nm with several alternative networking modules for fiber optic infrastructures. All presented products operate at an 850 nm wavelength and are designed for short-range data transmission, but they differ in interface types, maximum data transfer rates, and brand ecosystems.

⚙️ The specification comparison covers interface types, maximum data transfer rates, wavelengths, transceiver types, and structural features to evaluate the practical applicability of each solution.

ParameterD-Link DEM-311GTD-Link DEM-311GT (alt.)BlueOptics GP-SFP2-1SBlueOptics BTI-40GSR-DD-QSFPCisco GLC-SX-MMDBlueOptics F5-UPG-SFP-RPractical significance
Interface typeSFPSFPSFPQSFPSFPSFPSFP interfaces ensure versatile compatibility with most standard switches, whereas QSFP requires specialized high-density ports.
Data transfer rate1000 Mbit/s1000 Mbit/s1250 Mbit/s40000 Mbit/s1000 Mbit/s1250 Mbit/s1000–1250 Mbit/s modules fit standard gigabit networks, while the 40 Gbit/s solution is tailored for data centers.
Wavelength850 nm850 nm850 nm850 nm850 nm850 nmAll modules use an 850 nm wavelength, ensuring identical operational reach over multimode fiber optic cabling.
BrandD-LinkD-LinkBlueOpticsBlueOpticsCiscoBlueOpticsBrand selection depends on existing infrastructure and vendor-specific compatibility requirements within the network.

◎ The suitability analysis evaluates use cases and deployment scenarios to help determine which product best fits specific network environments and upgrade plans.

Use caseRecommended productWhy
Standard gigabit connections in D-Link environmentsFiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nmProvides seamless compatibility with D-Link hardware and stable 1000 Mbit/s data transmission over short distances.
Integration into Cisco networksCisco GLC-SX-MMDEngineered specifically for flawless integration and stable operation with Cisco switches and routers.
Network upgrades with increased speeds up to 1.25 Gbit/sBlueOptics GP-SFP2-1S / F5-UPG-SFP-ROffers higher data transfer rates up to 1250 Mbit/s for expanding existing gigabit communication links.
Backbone links in data centersBlueOptics BTI-40GSR-DD-QSFPDelivers extreme throughput up to 40000 Mbit/s with a QSFP interface for high-performance data center applications.

The main differentiator of the Fiber optic transceiver module D-Link DEM-311GT 1000 Mbit/s SFP 850 nm compared to the alternatives is its direct optimization for gigabit networks utilizing D-Link equipment with a standard SFP form factor. This module is most suitable when deploying or expanding local networks requiring fixed 1000 Mbit/s performance over short distances. Buyers should prefer it over alternatives if guaranteed compatibility with the D-Link ecosystem is required, whereas Cisco-based infrastructures or higher bandwidth demands are better served by the respective alternative options.

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Stock data
Warehouse Stock Delivery to the store Store Price
WH174 30 07.10.2026
18.49 € Best price
WH321 30 05.10.2026 Best delivery
21.99 €
WH94 30 07.10.2026
23.49 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 22 21.10.2026
27.49 €
EU9 22 07.10.2026
32.99 €
EU6 7 07.10.2026
36.49 €
18.49 €
Stock: 30
Delivery Date: 07.10.2026
Warehouse: WH174
21.99 €
Stock: 30
Delivery Date: 05.10.2026 Best delivery
Warehouse: WH321
23.49 €
Stock: 30
Delivery Date: 07.10.2026
Warehouse: WH94
25.99 €
Stock: 8
Delivery Date: 07.10.2026
Warehouse: WH357
25.99 €
Stock: 20
Delivery Date: 07.10.2026
Warehouse: WH334
26.49 €
Stock: 8
Delivery Date: 07.10.2026
Warehouse: EU3
Available only for legal entities
27.49 €
Stock: 22
Delivery Date: 21.10.2026
Warehouse: WH109
32.99 €
Stock: 22
Delivery Date: 07.10.2026
Warehouse: EU9
36.49 €
Stock: 7
Delivery Date: 07.10.2026
Warehouse: EU6

Customer reviews

Customer questions

FAQ

How much does the Fiber optic transceiver D-Link DEM-311GT 1000 Mbit/s cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 177 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 07.10.2026 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 D-Link 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 D-Link 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.
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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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