# Fiber optic transceiver module BlueOptics DEM-QX10Q-LR4-BO QSFP CWDM

**URL:** https://aio.lv/en/product--blueoptics-dem-qx10q-lr4-bo--4470716
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** DEM-QX10Q-LR4-BO
**EAN:** 4063232644363
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 309.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 256.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dem-qx10q-lr4-bo--4470716

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics DEM-QX10Q-LR4-BO is a fiber optic QSFP transceiver module designed for high-speed data transmission. It features CWDM technology, ensuring efficient performance. The module is lightweight at 20 g and comes in an aluminum housing, making it durable and reliable for network applications.

## Long description

The BlueOptics DEM-QX10Q-LR4-BO QSFP CWDM is a 40G fiber optic transceiver module designed for high-speed single‑mode optical links. Housed in aluminium and weighing 20 g, the module uses a QSFP interface and CWDM (coarse wavelength division multiplexing) for simultaneous multi‑wavelength transmission and reception over LC duplex connections. It is intended for integration into network equipment that supports 40GBASE‑LR4 QSFP modules and for applications that require reliable long‑reach optical links.
Advantages
The module provides multi‑wavelength CWDM operation within a compact QSFP form factor, enabling 40 Gbps aggregated throughput on single‑mode fiber. The aluminium housing offers mechanical robustness and thermal stability while maintaining a low weight of 20 g. Designed according to MSA QSFP standards, the transceiver is compatible with hardware accepting 40GBASE‑LR4 QSFP modules and supports optical transmission over extended single‑mode distances when deployed with suitable fiber cabling and LC duplex connectors.
Suitable for
 40G uplinks between switches and routers in data centers
 Long‑reach single‑mode optical links up to LR4 application ranges
 High‑speed Ethernet or Fibre Channel interconnects requiring CWDM QSFP modules
Key specifications
 Form factor: QSFP
 Transmission technology: CWDM (coarse wavelength division multiplexing)
 Supported application: 40G aggregated optical links (40GBASE‑LR4 class)
 Connector type: LC duplex (optical)
 Housing: aluminium
 Weight: 0.02 kg
 Fiber type: single‑mode
How to use
Install the BlueOptics DEM-QX10Q-LR4-BO into a QSFP port of a compatible switch, router or other network device that supports 40GBASE‑LR4 QSFP transceivers. Connect LC duplex single‑mode fiber patch cords according to the device port labeling, ensuring correct TX/RX orientation. Verify the host device recognizes the transceiver and, if available, enable or confirm DDM/DOM support in the host to read optical and electrical diagnostic parameters. Use manufacturer‑recommended fiber patching practices and clean connectors before insertion to maintain signal quality.
Usage recommendations
For optimal performance, pair the transceiver with single‑mode LC duplex patch cords and, where applicable, compatible BlueOptics fiber accessories. Ensure the host hardware and software explicitly support 40GBASE‑LR4 QSFP modules and, if remote diagnostics are required, confirm DDM/DOM compatibility. Follow standard fiber handling and connector cleaning procedures to minimise signal loss and maintain link reliability.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Maximum transfer distance | 10000 m |
| SFP transceiver standard | CWDM |
| Coarse Wavelength Division Multiplexing (CWDM) | Yes |

### Network

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.02 kg |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 30 g |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Features

| Feature | Value |
|---|---|
| Product colour | Aluminium |

## FAQ

### How much does the Fiber optic transceiver BlueOptics DEM-QX10Q-LR4-BO cost, and is it available for purchase?

The price is 309.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 341 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 28.07.2026 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. 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 BlueOptics 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 BlueOptics 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, weight, product colour, 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/4470716/64300631_large.webp