# InfiniBand/fibre optic cable BlueOptics QFX-QSFP28-DAC-3M-BL 3m Male/Male

**URL:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-3m-bl--4466223
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QFX-QSFP28-DAC-3M-BL
**EAN:** 4063232642529
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-3m-bl--4466223

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics QFX-QSFP28-DAC-3M-BL is a 3-meter InfiniBand/fibre optic cable featuring QSFP28 connectors on both ends. It is designed for high-speed data transmission and is ideal for connecting network devices in data centers. The male/male configuration ensures compatibility with various equipment, providing reliable performance and durability.

## Long description

The BlueOptics QFX-QSFP28-DAC-3M-BL is a 3-meter direct attach cable with QSFP28 connectors on both ends, designed for short-reach high-speed links in data centers and rack environments. It supports up to 100G transmission and is suitable for InfiniBand and Ethernet applications where a passive twinax copper or equivalent direct attach solution is required. The male-to-male QSFP28 configuration provides physical compatibility with switches, routers and storage systems that accept QSFP28 DAC modules.
Advantages
This 3m QSFP28 direct attach cable offers a low-latency, low-power connection for short-distance links and rack-to-rack interconnects. Its passive design reduces complexity and failure points compared with active optical modules, while the rugged QSFP28 connectors and quality components ensure stable performance and long service life. The cable is suitable for environments where predictable latency and energy efficiency are priorities.
Suitable for
100G Ethernet links between switches in the same rack or adjacent racks
InfiniBand high-performance computing interconnects over short distances
Direct attach connections to storage arrays and routers that support QSFP28 DACs
Key specifications
Connector type: QSFP28 to QSFP28, male/male
Length: 3 meters
Supported data rate: up to 100 Gbps
Cable type: direct attach (twinax / passive DAC) suitable for short-reach electrical transmission
Wire gauge: 26 AWG (as typical for this cable family)
Compliance: MSA-compliant QSFP28 form factor and electrical interface
How to use
Install the BlueOptics QSFP28 DAC by aligning each QSFP28 connector with the port on the corresponding switch, router or storage device and inserting until the latch engages. Ensure both devices support passive QSFP28 direct attach cables and the targeted protocol (Ethernet, FCoE or InfiniBand) at 100G. Route the cable to avoid sharp bends, excessive tension and sources of electromagnetic interference. If the host requires specific cable recognition, verify compatibility with the device vendor and test the link after installation.
Usage recommendations
Use this 3m passive QSFP28 DAC for short-distance, high-bandwidth links inside racks and between adjacent racks. Confirm device support for passive DACs and follow vendor guidance for QSFP28 port configuration and transceiver settings to achieve optimal performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 3 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Warranty period | 5 year(s) |
| Compliance certificates | RoHS |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics QFX-QSFP28-DAC-3M-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 — 337 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 03.08.2026 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/4466223/64292511_large.webp