# BlueOptics FMJDG InfiniBand fibre optic cable 5 m QSFP28 4xSFP28 Black

**URL:** https://aio.lv/en/product--blueoptics-fmjdg-bl--4464877
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** FMJDG-BL
**EAN:** 4063232008141
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 290.49 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 240.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-fmjdg-bl--4464877

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.08.2026 | free |
| Pickup points | 19.08.2026 | 1.79 EUR |
| Courier delivery to door | 19.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics FMJDG is a 5 m InfiniBand fibre optic cable featuring a QSFP28 connector and 4xSFP28 connectors. It is designed for high-speed data transmission and reliable connectivity in data centers and networking environments. The male/male configuration ensures compatibility with a variety of devices, making it a versatile choice for modern networking needs.

## Long description

The BlueOptics FMJDG InfiniBand fibre optic cable 5 m QSFP28 4xSFP28 Black is a 5-metre active optical assembly designed to connect high-speed InfiniBand ports using a single QSFP28 plug on one end and four SFP28 plugs on the other. Intended for use in data centre and enterprise networking environments, this cable supports low-latency, high-bandwidth links between switches, servers and adapters while minimising signal loss over the specified length.
Advantages
This cable offers a compact, factory-terminated QSFP28-to-4xSFP28 solution that simplifies cabling and reduces the need for multiple discrete duplex connections. Its active optical construction provides stable signal integrity for high data rates typical of InfiniBand environments while keeping electrical interference to a minimum. The male-to-male connector configuration ensures straightforward plug-and-play compatibility with standard QSFP28 and SFP28 ports.
Suitable for
 High-performance computing clusters using InfiniBand interconnects
 Top-of-rack and spine switch connections requiring QSFP28 to multiple SFP28 links
 Server-to-switch or switch-to-switch short-reach connections up to 5 metres
 Environments demanding low-latency, high-bandwidth links such as virtualization hosts and storage networks
Key specifications
 Cable type: InfiniBand active fibre optic assembly
 Length: 5 metres
 Connector end A: QSFP28 (male)
 Connector end B: 4 × SFP28 (male)
 Colour: Black
 Designed for: high-speed, low-latency data transmission
How to use
Verify that your devices have compatible QSFP28 and SFP28 ports and that they support the intended InfiniBand link configuration. With both endpoints powered down or in a safe maintenance state if required by your equipment, insert the QSFP28 connector into the QSFP28 port and the SFP28 connectors into the corresponding SFP28 ports until each latch engages. After connection, power on devices and confirm link status via your switch or adapter management interface. For troubleshooting, reseat connectors and inspect for physical damage or contamination on the fibre endfaces.
Usage recommendations
Handle the cable by its connectors and avoid sharp bends; maintain the manufacturer’s minimum bend radius. Keep fibre endfaces clean and protected when not in use, and use approved cleaning tools before insertion to ensure optimal signal quality and to prevent port damage.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Cable length | 5 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand fibre optic cable BlueOptics FMJDG 5 m cost, and is it available for purchase?

The price is 290.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 14.08.2026 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

https://aio.lv/img/cache/product/4464877/64289492_large.webp