# InfiniBand/fibre optic cable BlueOptics 720199-B21-BL 3 m QSFP Male/Male

**URL:** https://aio.lv/en/product--blueoptics-720199-b21-bl--5038074
**Data updated:** 2026-03-07 15:11 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 720199-B21-BL
**EAN:** 4063232611006
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 95.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-720199-b21-bl--5038074

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics 720199-B21-BL is a 3 m InfiniBand/fibre optic cable featuring QSFP connectors on both ends. Designed for high-speed data transmission, this cable ensures reliable connectivity in data centers and networking environments. Its male/male configuration allows for easy connection to compatible devices, making it an essential component for efficient data communication.

## Long description

The BlueOptics 720199-B21-BL is a 3 m InfiniBand/fibre optic direct attach cable with QSFP connectors on both ends, designed for 40G data links in rack and adjacent-rack environments. This BlueOptics cable implements a QSFP-to-QSFP passive twinax copper connection (40GBase-CR4) using 30 AWG wiring and complies with MSA specifications for reliable short-reach high-speed transmission. It is suitable for linking switches, routers, storage systems and other hardware platforms that accept QSFP passive direct attach cables and supports Ethernet, FCoE, Fibre Channel and InfiniBand protocols up to 40 Gbit/s over the specified distance.
Advantages
The cable provides a standardized QSFP male-to-male interface for straightforward rack-to-rack or within-rack connections and is manufactured to MSA guidelines to ensure compatibility with major hardware vendors. As a passive direct attach twinax solution it offers low power consumption and low latency, while using high-quality components for improved longevity and stable signal integrity. Built with 30 AWG conductors and tested for vendor interoperability, the cable is intended to deliver predictable performance for short-distance 40G links.
Suitable for
 40G uplinks between switches within the same rack or adjacent racks
 Interconnections for storage arrays and networked storage systems
 Short-reach InfiniBand, Ethernet, FCoE or Fibre Channel links
 High-density rack environments requiring QSFP-to-QSFP direct attach connections
Key specifications
 Length: 3 meters
 Connector type: QSFP male to QSFP male
 Supported data rate: up to 40 Gbit/s
 Media type: passive twinax copper (DAC)
 AWG: 30
 Standards compliance: MSA-compliant QSFP direct attach
 Supported protocols: Ethernet, FCoE, Fibre Channel, InfiniBand
How to use
Install the BlueOptics 3 m QSFP-to-QSFP cable by inserting each QSFP male connector into the corresponding QSFP port on the devices to be linked. Ensure that the connected hardware platform supports passive 40GBase-CR4 direct attach twinax cables and that ports are configured for the intended protocol. Route the cable within the rack to avoid sharp bends and mechanical strain; secure the cable with rack management accessories if necessary. After physical connection, verify link status and speed in the device management interface and, if required, adjust port settings or firmware to match vendor interoperability requirements.
Usage recommendations
Use this passive QSFP twinax cable for short-distance 40G connections inside racks or to adjacent racks. Avoid exceeding recommended bend radius, maintain clean connector interfaces, and confirm device compatibility for passive DAC operation. For longer distances or active transceiver-based links, select appropriate fiber optic or active cabling solutions.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 3 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP |
| Connector 2 | QSFP |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics 720199-B21-BL cost, and is it available for purchase?

The price is 114.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 152 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 27.07.2026 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

## Image

https://aio.lv/img/cache/product/5038074/64334400_large.webp