# BlueOptics QSFP28-100G-CU5M-BL InfiniBand/fibre optic cable 5 m Male/Male

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cu5m-bl--4466648
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-CU5M-BL
**EAN:** 4063232102689
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 212.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 175.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cu5m-bl--4466648

## 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 QSFP28-100G-CU5M-BL is a 5 m InfiniBand/fibre optic cable with QSFP28 connectors. It features a male/male gender configuration, designed for high-speed data transmission in data centers and networking applications, ensuring reliable connectivity and performance.

## Long description

The BlueOptics QSFP28-100G-CU5M-BL InfiniBand/fibre optic cable is a 5 m direct-attach assembly with QSFP28 male connectors on both ends. Engineered for short-reach, high-bandwidth links, this passive twinax copper cable supports 100GBase-CR4 and is intended for use in data center and high-performance networking equipment that accept QSFP28 direct-attach cables. The cable uses 26 AWG conductors and follows MSA-compliant QSFP28 electrical and mechanical specifications, providing a straightforward physical connection for switches, routers and storage systems over a 5 meter distance.
Advantages
This passive QSFP28 twinax cable offers low latency and low power consumption compared with active optical modules, making it suitable for short-distance interconnects inside racks and between adjacent racks. Compliance with MSA QSFP28 standards and the use of high-quality components help ensure reliable interoperability with hardware platforms that support 100GBase-CR4. The fixed 5 m length simplifies cable management for rack-to-rack connections and reduces the need for external transceivers or additional power draw.
Suitable for
High-speed switch-to-switch links within or between adjacent racks
Server-to-switch and storage-to-switch connections in data centers
InfiniBand and Ethernet environments requiring 100 Gbit/s short-reach connectivity
Environments where low latency and minimal power consumption are required
Key specifications
Connector type: QSFP28 male to QSFP28 male
Length: 5 meters
Transmission: passive twinax copper, 100GBase-CR4 capable
Wire gauge: 26 AWG
Supported protocols: Ethernet (100G), FCoE, Fibre Channel, InfiniBand (up to 100 Gbit/s)
Form factor: direct attach cable (DAC) for short-reach links
How to use
Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port on your networking devices until the latch engages. Ensure both devices support passive QSFP28 direct-attach cables and the 100GBase-CR4 or respective protocol you intend to run. Avoid excessive bending or kinking of the cable and route it to minimize mechanical stress and airflow obstruction in the rack. Verify link status and speed on connected devices after installation and consult equipment logs if the connection does not establish.
Usage recommendations
Use this 5 m passive DAC for short-range connections inside racks or between adjacent racks where the host hardware explicitly supports passive QSFP28 direct-attach cables. Maintain recommended bend radius for twinax assemblies, keep the cable away from heat sources and ensure firmware or driver settings on connected equipment allow passive 100GBase-CR4 connections.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 5 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand cable BlueOptics QSFP28-100G-CU5M-BL cost, and is it available for purchase?

The price is 212.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 356 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/4466648/64293504_large.webp