# DAC Cable BlueOptics FN-CABLE-QSFP28-2-BL QSFP28 4x QSFP28 InfiniBand 2m Black

**URL:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-2-bl--10967049
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** FN-CABLE-QSFP28-4SFP28-2-BL
**EAN:** 4063232329314
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 173.49 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 143.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-2-bl--10967049

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.08.2026 | free |
| Pickup points | 18.08.2026 | 1.89 EUR |
| Courier delivery to door | 18.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics FN-CABLE-QSFP28-2-BL is a high-quality DAC cable designed for InfiniBand and fibre optic applications. With a length of 2 meters, it features a QSFP28 connector on one end and 4x QSFP28 connectors on the other. This cable ensures high-speed data transmission and reliability, making it ideal for data centers and high-performance computing environments. Its black color adds a professional touch to your setup.

## Long description

The BlueOptics FN-CABLE-QSFP28-2-BL is a Direct Attach Copper (DAC) cable engineered for high-speed InfiniBand and fiber-optic network links. Measuring 2 m in length and finished in black, the cable terminates in a single QSFP28 connector on one end and four QSFP28 connectors on the other, enabling compact, low-latency interconnects in racks and switch-to-server connections. It is intended for dense networking environments where reliable, short-reach, high-bandwidth links are required.
Advantages
This DAC cable provides low-latency, high-throughput data transmission suitable for InfiniBand fabrics and compatible QSFP28 ports. The fixed 2 m length reduces signal loss over short distances and simplifies cabling in racks. Its robust housings and black finish help maintain consistent mechanical connections and a tidy physical layout. The design minimizes power consumption compared with active optical alternatives while offering predictable performance in controlled environments.
Suitable for
 Server-to-switch connections in data centers
 High-performance computing clusters using InfiniBand
 Top-of-rack and spine-leaf network fabrics
 Short-reach interconnects within racks and cabinets
Key specifications
 Cable type: Direct Attach Copper (DAC)
 Length: 2 m
 Connector 1: QSFP28
 Connector 2: 4x QSFP28
 Weight: 0.25 kg
 Colour: Black
How to use
Install the cable by aligning the QSFP28 connector keyed features with compatible QSFP28 ports and gently inserting until the connector latches. Ensure devices are powered down or that hot-plug procedures recommended by the device manufacturer are followed. Route the 2 m cable to avoid sharp bends and reduce mechanical stress on the connectors. Verify link status on both endpoints after connection to confirm proper operation.
Usage recommendations
Use this DAC cable for short-distance, high-bandwidth links in controlled temperature environments. Avoid exposure to moisture and excessive vibration. For longer distances or environments requiring electrical isolation, consider optical transceivers and fiber cabling instead.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 2 m |
| Cable type | DAC |
| Connector 1 | QSFP28 |
| Connector 2 | 4x QSFP28 |
| Product colour | Black |
| AWG wire size | 26 |
| Ethernet interface type | 2.5 Gigabit Ethernet, 100 Gigabit Ethernet |
| Brand compatibility | Fortinet |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Fastening type | Push–pull |
| Cable shape | Round |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.25 kg |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 260 g |
| Package type | Polybag |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | CE, Federal Communications Commission (FCC), RoHS |

## FAQ

### How much does the DAC Cable BlueOptics FN-CABLE-QSFP28-2-BL cost, and is it available for purchase?

The price is 173.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 13.08.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable type, cable length, connector 1, connector 2, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10967049/64098994_large.webp