# Network Cable Lenovo B4QQ QSFP56 Direct Attach Cable 200G Twinaxial Copper Blue

**URL:** https://aio.lv/en/product--blueoptics-b4qq-bl--10754914
**Data updated:** 2026-03-07 18:01 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** B4QQ-BL
**EAN:** 4063232289564
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-b4qq-bl--10754914

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The Lenovo B4QQ compatible QSFP56 Direct Attach Cable (DAC) is a passive 200 Gigabit Twinaxial Copper cable designed for connecting hardware in racks and across adjacent racks. It features QSFP56 connectors on both ends, ensuring high-speed data transfer and low latency. This cable is ideal for data centers and high-performance computing environments, providing reliable connectivity with a sleek blue design.

## Long description

The Lenovo B4QQ QSFP56 Direct Attach Cable 200G Twinaxial Copper Blue is a passive high-speed interconnect designed for short-reach links in data center and rack environments. Featuring QSFP56 connectors on both ends, this twinax copper cable supports 200 Gigabit data transfer with low latency and is intended for direct attachment between switches, servers, and network adapters within the same rack or adjacent racks. The blue jacket provides clear visual identification in cabling runs.
Advantages
This direct attach cable delivers reliable 200G performance with minimal power consumption due to its passive twinax design. The QSFP56 connector interface ensures compatibility with equipment that accepts QSFP56 form-factor modules, offering low insertion loss and stable signal integrity across short distances. The cable's robust copper conductors and molded connectors are engineered for repeated insertions and secure mechanical fit, while the colored jacket helps maintain organized cable management.
Suitable for
 High-density switch-to-switch connections within a rack
 Server-to-switch connections in data centers
 Interconnects between network adapters and top-of-rack switches
 Short-reach links in high-performance computing clusters
Key specifications
 Data rate: 200 Gbit/s
 Connector type: QSFP56 on both ends
 Cable medium: Twinaxial copper
 Form factor: Direct attach passive cable
 Color: Blue jacket for identification
 Typical reach: short-reach interconnects (rack/adjacent racks)
How to use
Connect each QSFP56 connector to the corresponding QSFP56 port on your network devices, ensuring the connector latches engage and the cable is routed to avoid sharp bends. Use this cable for direct-attached links where short copper runs meet your bandwidth and latency requirements. Verify device compatibility with QSFP56 passive twinax cables and check port settings and firmware if link negotiation is required.
Usage recommendations
For optimal performance, keep cable runs within recommended short-reach distances, avoid tight bends and mechanical strain, and maintain good airflow around connected equipment. Confirm that connected devices support passive QSFP56 twinax connections and that firmware versions are up to date to ensure stable 200G operation.

## FAQ

### How much does the Network Cable Lenovo B4QQ 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 — 60 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 28.07.2026 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