# InfiniBand/fibre optic cable BlueOptics 25GB-4-C01-QSFP28-BL 1 m 4xSFP28

**URL:** https://aio.lv/en/product--blueoptics-25gb-4-c01-qsfp28-bl--5056512
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 25GB-4-C01-QSFP28-BL
**EAN:** 4063232641973
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-25gb-4-c01-qsfp28-bl--5056512

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics 25GB-4-C01-QSFP28-BL is a 1 m InfiniBand/fibre optic cable featuring a QSFP28 connector and 4xSFP28 connectors. It is designed for high-speed data transfer, ensuring reliable connectivity in data centers and networking environments. The male/male connectors provide easy installation and compatibility with various devices.

## Long description

The BlueOptics 25GB-4-C01-QSFP28-BL is a 1 m InfiniBand/fibre optic direct attach cable with a QSFP28 plug on one end and four SFP28 plugs on the other. Designed for short-reach, high-bandwidth interconnects inside racks or between adjacent racks, the cable supports 100GBase-CR4 / 4x25GBASE-CR electrical links and is suitable for Ethernet, FCoE, Fibre Channel and InfiniBand applications up to 100 Gbit/s over a 1 m distance. The male-to-male connection and 26 AWG twinax construction provide a simple, low-latency link for server, switch and storage hardware that support QSFP28 and SFP28 interfaces.
Advantages
This BlueOptics cable offers a compact, low-power and low-latency solution for high-speed short-distance connections. As a passive direct attach twinax cable it does not require external power or active signal conditioning, which reduces complexity and failure points. The cable is manufactured to MSA-compliant specifications and uses robust components to deliver consistent signal integrity and a long service life suitable for dense data center environments.
Suitable for
Connecting QSFP28 ports to multiple SFP28 ports within the same rack
Short-reach 100G to 4×25G conversions in switch-to-switch or switch-to-server links
High-bandwidth links for storage systems and aggregation switches
Low-latency InfiniBand and fibre channel connections over short distances
Key specifications
Length: 1 meter
Connector types: QSFP28 to 4 × SFP28 (male to male)
Transmission: 100GBase-CR4 / 4×25GBASE-CR electrical twinax
Cable type: Passive direct attach twinax copper (26 AWG)
Supported protocols: Ethernet, FCoE, Fibre Channel, InfiniBand (up to 100 Gbit/s over 1 m)
Compliance: MSA-compliant mechanical and electrical interfaces
How to use
Ensure both devices support passive DAC twinax cabling and the relevant 100GBase-CR4 or 4×25GBASE-CR profiles. Power down or follow hot-plug guidelines for your hardware platform, align the QSFP28 and SFP28 plugs with the respective ports and insert until the retention latch engages. For multiport QSFP28-to-4×SFP28 use cases, verify lane mapping and link negotiation in the connected devices and check link status indicators after insertion. Remove the cable by depressing the latch and pulling straight out to avoid mechanical strain on connectors.
Usage recommendations
Use this 1 m BlueOptics QSFP28-to-4×SFP28 direct attach cable for short, high-bandwidth interconnects inside racks or between adjacent racks where low latency and low power consumption are priorities. Avoid routing the twinax cable near high-temperature sources, keep bend radii within the manufacturer’s limits, and confirm device compatibility with passive DACs to ensure reliable operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 1 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics 25GB-4-C01-QSFP28-BL cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 06.08.2026 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/5056512/64355869_large.webp