# InfiniBand/fibre optic cable BlueOptics AT-QSFP-4SFP10G-3CU-BL 3 m Male/Male

**URL:** https://aio.lv/en/product--blueoptics-at-qsfp-4sfp10g-3cu-bl--4465075
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** AT-QSFP-4SFP10G-3CU-BL
**EAN:** 4063232047089
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 103.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-at-qsfp-4sfp10g-3cu-bl--4465075

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.08.2026 | free |
| Pickup points | 21.08.2026 | 1.79 EUR |
| Courier delivery to door | 21.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics AT-QSFP-4SFP10G-3CU-BL is a 3 m InfiniBand/fibre optic cable featuring QSFP connectors on both ends. It is designed for high-speed data transmission and ensures reliable connectivity for data centers and networking applications.

## Long description

The BlueOptics AT-QSFP-4SFP10G-3CU-BL is a 3 m InfiniBand/fibre optic direct-attach cable with a QSFP connector on one end and four SFP+ interfaces on the other, designed for high-speed rack and adjacent-rack interconnects. It implements a passive twinax copper design suitable for short-distance 40GBase-CR4 / 4x10GBase-CR applications and is MSA-compliant for interoperability with hardware that supports QSFP-to-4xSFP+ breakouts. The cable is intended for use in data center switches, routers and storage systems where reliable low-latency, high-bandwidth links are required.
Advantages
This 3 m QSFP-to-4xSFP+ cable provides up to 40 Gbit/s aggregate bandwidth using a passive twinax copper construction, which results in low power consumption and minimal latency compared with active or optical alternatives for the same short-reach links. MSA compliance ensures mechanical and electrical interoperability with compatible network equipment. The cable uses industry-grade components and production processes aimed at long operational lifetime and consistent performance for data center deployments.
Suitable for
QSFP-to-SFP+ breakout connections between switches and top-of-rack devices
High-density rack interconnects and adjacent-rack links up to 3 m
40G Ethernet, FCoE, and InfiniBand short-reach connections where passive DAC is supported
Upgrading port density in network, server and storage enclosures
Key specifications
Cable length: 3 m
Connector type: QSFP (one end) to 4 × SFP+ (other end)
Topology: passive twinax copper (breakout DAC)
Supported data rates: up to 40 Gbit/s aggregate (4 × 10 Gbit/s lanes)
Wire gauge: 30 AWG
Standards compliance: MSA (QSFP breakout DAC), suitable for 40GBase-CR4 / 4x10GBase-CR
Typical applications: Ethernet, FCoE, Fibre Channel and InfiniBand short-reach links
How to use
Install the cable by inserting the QSFP connector into the QSFP port of the originating device and the four SFP+ plugs into the destination device ports, ensuring correct orientation and secure seating. Use this passive DAC only for short-distance connections (up to 3 m) and verify that both devices explicitly support passive QSFP-to-4×SFP+ breakout cables. Confirm link negotiation and port configuration on both devices after physical installation; when required, adjust switch or host settings to enable 40G/10G lane breakout modes.
Usage recommendations
For reliable operation, avoid sharp bends and excessive tensile stress on the cable, maintain slack to prevent strain on connectors, and route the cable away from sources of electromagnetic interference. Check hardware compatibility and firmware requirements before deployment and test each link in the target environment. If longer reaches or optical isolation are needed, choose appropriate active DAC or optical transceivers and fibre cables instead of a passive twinax solution.

## 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 AT-QSFP-4SFP10G-3CU-BL cost, and is it available for purchase?

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 18.08.2026 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

## Image

https://aio.lv/img/cache/product/4465075/64290253_large.webp