# BlueOptics passive QSFP-DD to 4×QSFP56 400GBASE-CR4 to 4×100GBASE-CR Direct Attach Breakout Cable 2 m AWG26

**URL:** https://aio.lv/en/product--blueoptics-qdd-4zq100-cu2m-bl--12242603
**Data updated:** 2026-04-01 09:49 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QDD-4ZQ100-CU2M-BL
**EAN:** 4063232331423
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 407.49 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 336.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qdd-4zq100-cu2m-bl--12242603

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

Passive BlueOptics breakout direct-attach cable with QSFP-DD plug to four QSFP56 connectors. Supports 400GBASE-CR4 to four 100GBASE-CR links over a 2 meter AWG26 twinax assembly. Designed for high-density server, switch and aggregation deployments to split a 400G port into four 100G ports for short-reach copper connectivity and chip-to-chip or rack-to-rack interconnects.

## Long description

BlueOptics passive QSFP-DD to 4×QSFP56 400GBASE-CR4 to 4×100GBASE-CR Direct Attach Breakout Cable 2 m AWG26 is a twinax copper breakout assembly that converts a single 400G QSFP-DD port into four independent 100G QSFP56 links. The cable is a passive, short-reach solution built with AWG26 conductors over a 2 meter length, intended for high-density server, switch and aggregation environments where splitting a 400G connection into multiple 100G links is required.
Advantages
The passive design provides low-latency, high-throughput copper connectivity without the need for additional transceivers or power, simplifying rack-level interconnects. The four-way breakout enables flexible port allocation and efficient use of high-speed switch fabrics. The 2 m length and AWG26 construction balance signal integrity and manageability for short-reach links between devices within a rack or across adjacent racks.
Suitable for
Splitting a QSFP-DD 400G port into four 100G QSFP56 ports for server and switch interconnects
Chip-to-chip and board-to-board short-reach connections inside data center racks
Top-of-rack to aggregation switch links where short copper runs are acceptable
High-density deployments requiring efficient use of limited port space
Key specifications
Connector type: one QSFP-DD plug to four QSFP56 receptacles
Supported link modes: 400GBASE-CR4 to four 100GBASE-CR links
Cable type: passive twinax copper
Conductor size: AWG26
Length: 2 meters
Use case: short-reach copper direct attach breakout
How to use
Install the QSFP-DD end into the 400G port on a compatible switch or device, and insert each QSFP56 connector into the target 100G ports on connected devices. Ensure that both ends are compatible with passive twinax breakout assemblies and that port firmware or switch configuration supports splitting a 400G port into four 100G lanes. Route the cable to avoid sharp bends and secure it to maintain proper bend radius and mechanical strain relief.
Usage recommendations
Use this passive breakout cable for short-reach, rack-level interconnects up to 2 m. Verify switch compatibility with 400G-to-4×100G breakouts and verify link settings after installation. Avoid exceeding the specified length and protect the cable from excessive bending, crushing, or electromagnetic interference sources for best performance.

## FAQ

### How much does the BlueOptics QSFP-DD to 4×QSFP56 2 m AWG26 breakout cable cost, and is it available for purchase?

The price is 407.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 24.08.2026 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