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

**URL:** https://aio.lv/en/product--blueoptics-qdd-2q200-cu1m-bl--12242600
**Data updated:** 2026-04-01 09:49 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QDD-2Q200-CU1M-BL
**EAN:** 4063232329697
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 163.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 135.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qdd-2q200-cu1m-bl--12242600

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

Direct attach copper (DAC) cable BlueOptics QDD-2Q200-CU1M-BL with QSFP-DD connector to two QSFP56 ports. Length 1 m, weight 0.35 kg, black housing. Designed for high-speed InfiniBand or fibre optic-compatible ports to interconnect switches, servers and NICs supporting QSFP-DD and QSFP56 modules in data center and HPC environments.

## Long description

BlueOptics InfiniBand/fibre optic DAC cable QSFP-DD to 2x QSFP56, 1 m, Black is a direct attach copper (DAC) twinax cable designed to interconnect high-speed networking devices. The cable features a single QSFP-DD plug on one end and two QSFP56 plugs on the other, with a 1 m length and a black housing. It is intended for short-reach electrical connections between switches, servers and network interface cards that support QSFP-DD and QSFP56 form factors in data centre and high-performance computing environments.
Advantages
This DAC cable provides a compact, low-latency physical link without the need for transceivers, offering a straightforward cabling option for rack-to-rack or intra-rack interconnects. Passive twinax construction reduces power consumption compared with active optical solutions for short distances. The QSFP-DD to dual QSFP56 pinout enables splitting a single high-density port into two 200G-capable QSFP56 endpoints where supported by host hardware, simplifying consolidation and port aggregation in dense deployments.
Suitable for
Short-reach connections between switches and top-of-rack devices
Interconnects between servers and NICs supporting QSFP-DD and QSFP56
High-performance computing (HPC) clusters and data centre aggregation
Rack-to-rack cabling within the same equipment room or adjacent racks
Key specifications
Cable type: Direct Attach Copper (DAC), passive twinax
Cable length: 1 m
Connector configuration: QSFP-DD (single) to 2× QSFP56 (dual)
Colour: Black
Weight: 0.35 kg
How to use
Ensure both ends and the host ports are compatible with QSFP-DD and QSFP56 standards and that the target devices support splitting or breakout functionality where required. Power down or follow hot-plug guidance of your hardware vendor before inserting the cable. Align the QSFP-DD connector with the port and insert until it seats; repeat for the two QSFP56 connectors. Verify link lights and device diagnostics to confirm a successful connection and correct lane mapping as per your switch or NIC configuration.
Usage recommendations
Use this 1 m passive DAC for short-distance, high-bandwidth links inside racks or between adjacent racks. Avoid routing the cable near strong electromagnetic interference sources, and observe bend-radius limits and secure strain relief to maintain signal integrity and mechanical reliability.

## 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 2x QSFP56 DAC cable 1 m cost, and is it available for purchase?

The price is 163.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 31.07.2026 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/12242600/68143188_large.webp