# Fiber optic transceiver module D-Link DEM-431XT

**URL:** https://aio.lv/en/product--d-link-dem-431x--686040
**Data updated:** 2026-01-13 15:26 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** D-Link
**Manufacturer code:** DEM-431X
**EAN:** 790069353130
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 142.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 117.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--d-link-dem-431x--686040

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The D-Link DEM-431XT is a fiber optic SFP+ transceiver module with a maximum data transfer rate of 10000 Mbit/s. It operates at a wavelength of 850 nm and is compatible with SFP+ interfaces. This module is certified by UL, TUV, CE, FCC, VCCI, and C-Tick, ensuring safety and reliability. With a compact design (14.8 mm width, 11.8 mm depth, 56.5 mm height), it is ideal for high-speed network applications.

## Long description

The D-Link DEM-431XT is a compact fiber optic SFP+ transceiver module designed for high-speed network links. Supporting a maximum data transfer rate of 10000 Mbit/s and operating at an 850 nm wavelength, this module fits SFP+ interfaces and is intended for short-range multimode fiber connections. Its small form factor and industry certifications ensure it can be integrated into switches, routers and other network equipment that accept SFP+ modules.
Advantages
The transceiver provides a reliable 10 Gbps connection over multimode fiber while keeping power consumption and physical footprint low. Its compliance with multiple safety and electromagnetic standards offers predictable interoperability and installation safety. The compact dimensions and light weight make it suitable for dense port configurations and reduce spatial constraints in networking racks and chassis.
Suitable for
10 Gigabit Ethernet uplinks and server connections in data centers
High-speed links between switches in campus and enterprise networks
Short-range multimode fiber links for storage and virtualization environments
Key specifications
Interface type: SFP+
Maximum data transfer rate: 10000 Mbit/s (10 Gbps)
Wavelength: 850 nm
Form factor: compact SFP+ transceiver
Typical use: multimode fiber short-reach links
Weight: 0.018 kg
Physical dimensions (W × D × H): 14.8 mm × 11.8 mm × 56.5 mm
Certifications: UL, TUV, CE, FCC, VCCI, C-Tick
How to use
Install the module into a compatible SFP+ slot on your network device, ensuring the device is powered down or follows the vendor's hot-swap procedure. Connect the appropriate multimode fiber cable with matching LC connectors and verify link status through the device management interface. Configure any required port settings such as speed, duplex and VLANs in the switch or router management console. Monitor the link for errors and temperature during initial operation to confirm stable performance.
Usage recommendations
Use multimode fiber patch cords rated for 850 nm and maintain proper fiber handling practices to avoid contamination and connector damage. Confirm compatibility with the host device's SFP+ port and firmware; if interoperability issues occur, consult the device vendor's transceiver compatibility list or update firmware. For dense installations, label ports and cables to simplify maintenance and reduce downtime.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP+ |
| Maximum data transfer rate | 10000 Mbit/s |
| Networking standards | IEEE 802.3ae |
| Wavelength | 850 nm |
| Fiber optic connector | LC |
| Maximum transfer distance | 300 m |
| Fiber cable diameters supported (core/cladding) | 50/125, 62.5/125 |
| Tx power (max) | -1 dBmW |
| Tx power (min) | -6.5 dBmW |
| Rx power (min) | -11.1 dBmW |
| Rx power (max) | -1 dBmW |
| Multi-mode fiber (MMF) supported | Yes |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Logistics data

| Feature | Value |
|---|---|
| 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) |
| Harmonized System (HS) code | 85369010 |
| Shipping (inner) case net weight | 3200 g |
| Pallet gross weight (air) | 272000 g |
| Master (outer) cases per pallet (air) | 60 pc(s) |
| Products per pallet (air) | 3000 pc(s) |
| Pallet height (air) | 1990 mm |
| Pallet gross weight (sea) | 272000 g |
| Master (outer) cases per pallet (sea) | 60 pc(s) |
| Products per pallet (sea) | 3000 pc(s) |
| Pallet height (sea) | 1990 mm |

### Certificates

| Feature | Value |
|---|---|
| Certification | CE, FCC, VCCI, C-Tick |
| Safety | UL, TUV, CDRH |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 85 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |
| Storage relative humidity (H-H) | 5 - 95 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.018 kg |
| Height | 56.5 mm |
| Width | 14.8 mm |
| Depth | 11.85 mm |

### Power

| Feature | Value |
|---|---|
| Maximum current | 300 A |
| Maximum voltage | 3.3 V |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 64 g |
| Package depth | 131 mm |
| Package height | 49 mm |
| Package width | 74 mm |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

## FAQ

### How much does the Fiber optic transceiver D-Link DEM-431XT cost, and is it available for purchase?

The price is 142.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 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 29.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Fiber optic transceiver D-Link DEM-431XT be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

### 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, weight, 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.

## Image

https://aio.lv/img/cache/product/686040/54588511_large.webp