# BlueOptics QSFP28 Transceiver R7D12A-BO — MPO, 100GBASE-SR4, Multimode 4×850nm, 100m, DDM/DOM, 0–70°C

**URL:** https://aio.lv/en/product--blueoptics-r7d12a-bo--12263080
**Data updated:** 2026-04-14 22:34 (EEST)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** R7D12A-BO
**EAN:** 4063232351476
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 102.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 84.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-r7d12a-bo--12263080

## 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

BlueOptics QSFP28 transceiver (model R7D12A-BO) is a 100GBASE-SR4 optical module for short-range Ethernet over multimode fiber. It uses an MPO connector and four 850 nm lanes to deliver 100 Gbps up to 100 meters. The module supports DDM/DOM for diagnostics and operates in the 0–70°C temperature range, suitable for data center and switch interconnects.

## Long description

BlueOptics QSFP28 Transceiver R7D12A-BO is a short-range 100GBASE-SR4 optical module designed for high-density data center and switch interconnects. The transceiver uses a multi-fiber MPO connector and four parallel 850 nm lanes to deliver aggregated 100 Gbps over multimode fiber up to 100 meters. The module supports digital diagnostics (DDM/DOM) for real-time monitoring of optical parameters and operates across an ambient temperature range of 0–70°C, making it suitable for standard indoor networking environments.
Advantages
The module provides compact QSFP28 form-factor connectivity that enables 100 Gbps links in a single port while maintaining compatibility with multimode fiber infrastructures using MPO connectors. Built-in DDM/DOM simplifies link diagnostics and monitoring of parameters such as optical power and temperature. The specified operating temperature range and multimode reach up to 100 meters make the transceiver appropriate for typical data center horizontal and aggregation layer connections.
Suitable for
 100G data center switch-to-switch or switch-to-server interconnects over multimode fiber
 Short-reach uplinks in campus or enterprise networks where MPO trunking is used
 High-density patch panels and MPO cassette deployments in wiring closets
When it may not be suitable
This QSFP28 SR4 transceiver is intended for short-range multimode fiber links and is not suitable for single-mode fiber or long-haul applications. It cannot replace transceivers that require different wavelengths, fiber types, or extended reach beyond the 100 m multimode specification. Use in outdoor or extreme temperature environments beyond 0–70°C is not recommended.
Key specifications
 Form factor: QSFP28
 Data rate: 100 Gbps (4×25 Gbps lanes)
 Optical standard: 100GBASE-SR4
 Wavelength: Multimode 4×850 nm
 Maximum reach: Up to 100 meters over multimode fiber (OM3/OM4 dependent)
 Connector type: MPO multi-fiber connector
 Diagnostic support: DDM / DOM for optical and temperature monitoring
 Operating temperature: 0 to 70 °C
How to use
Install the QSFP28 transceiver into a compatible QSFP28 port on your switch or transceiver-capable device, ensuring proper carrier latch engagement. Connect an MPO-terminated multimode fiber trunk or patch cable to the module’s MPO receptacle, observing correct fiber polarity and MPO key orientation. Use the host device management interface to verify link status and read DDM/DOM parameters for optical power, temperature, and other diagnostics. When removing the module, handle it by the housing and use dust caps to protect the MPO interface.
What to consider before purchase
 Ensure the target switch or device supports QSFP28 SR4 transceivers and is compatible with third-party modules.
 Verify multimode fiber type (OM3/OM4) and cable distance to ensure reliable 100 m reach.
 Confirm MPO connector polarity and patching scheme in your cabling infrastructure.
 Check that operating environment temperatures remain within the 0–70°C range.
Usage recommendations
For reliable performance, use MPO-terminated multimode fiber certified to OM3 or OM4 standards, maintain clean fiber endfaces and MPO connectors, and monitor DDM/DOM readings periodically to detect signal degradation or thermal issues. Match the transceiver specifications with the host device requirements and cabling plan before deployment.

## FAQ

### How much does the BlueOptics QSFP28 R7D12A-BO 100GBASE-SR4 MPO cost, and is it available for purchase?

The price is 102.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1857 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

## Image

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