# BlueOptics InfiniBand/fibre optic DAC cable 1 m QSFP-DD to 2×QSFP56 Black

**URL:** https://aio.lv/en/product--blueoptics-980-9i48y-00w001-bl--12242601
**Data updated:** 2026-04-01 09:49 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 980-9I48Y-00W001-BL
**EAN:** 4063232329703
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 163.99 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 135.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-980-9i48y-00w001-bl--12242601

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

Direct attach copper (DAC) cable by BlueOptics with QSFP-DD connector to two QSFP56 ports, 1 m length and 0.35 kg weight. Designed for InfiniBand and high-speed fibre-optic networking environments, it provides a short-reach direct connection between QSFP-DD ports and dual QSFP56 transceivers in switches, servers or NICs.

## Long description

BlueOptics InfiniBand/fibre optic DAC cable 1 m QSFP-DD to 2×QSFP56 Black is a passive direct attach copper (DAC) cable designed for short-reach high-speed connections in data centre racks. With a 1 m length and QSFP-DD to dual QSFP56 mating, it enables direct electrical linkage between a single QSFP-DD port and two QSFP56 ports in switches, servers or network interface cards that support compatible port types.
Advantages
This DAC cable offers a compact, low-latency connection for 400G-capable systems while avoiding the need for separate transceivers and fibre patching for short distances. The pre-terminated QSFP-DD to 2×QSFP56 configuration simplifies cabling density in rack deployments and reduces insertion points compared with multiple discrete cables. Its passive twinax construction provides consistent electrical signal transmission for short links and requires no external power or cooling.
Suitable for
Direct server-to-switch connections inside racks
Interconnections between adjacent racks in a data centre
High-speed InfiniBand or Ethernet fabrics using QSFP-DD and QSFP56 ports
Top-of-rack aggregation where short-reach, high-bandwidth links are needed
Key specifications
Cable type: Direct Attach Copper (DAC)
Cable length: 1 m
Connector 1: QSFP-DD
Connector 2: 2× QSFP56
Rated bandwidth: supports 400G-capable configurations (400 Gbit/s topology dependent)
Product colour: Black
Weight: 0.35 kg
How to use
Insert the QSFP-DD plug into the host QSFP-DD port and insert the two QSFP56 plugs into the corresponding QSFP56 ports, ensuring connectors are fully seated and latches engaged. Verify the host devices support passive DAC connections between QSFP-DD and QSFP56 form factors and confirm port speed/port mapping in device firmware or management software. Follow standard electrostatic discharge (ESD) precautions when handling and avoid sharp bends; observe each device’s hot-plug and link training procedures during installation and removal.
Usage recommendations
Use this DAC for short-reach links within the same rack or to adjacent racks; verify compatibility with your hardware vendor’s supported DAC types and firmware notes for QSFP-DD to QSFP56 connectivity. Avoid using outside the intended short-range environment and keep the cable routing free from mechanical stress and excessive heat sources.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 400 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 1 m |
| Cable type | DAC |
| Connector 1 | QSFP-DD |
| Connector 2 | 2x QSFP56 |
| Product colour | Black |
| AWG wire size | 26 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Cable shape | Round |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.35 kg |

### Operational conditions

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

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 360 g |
| Package type | Polybag |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Certificates

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

## FAQ

### How much does the BlueOptics QSFP-DD to 2×QSFP56 DAC 1 m cost, and is it available for purchase?

The price is 163.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 10.08.2026 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/12242601/68143187_large.webp