# InfiniBand/fibre optic cable BlueOptics 49Y7889-BL 5 m QSFP 4xSFP+

**URL:** https://aio.lv/en/product--blueoptics-49y7889-bl--4465014
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 49Y7889-BL
**EAN:** 4063232009803
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-49y7889-bl--4465014

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics 49Y7889-BL is a 5 m InfiniBand/fibre optic cable featuring a QSFP connector and 4xSFP+ connectors. It is designed for high-speed data transmission and reliable connectivity in data centers and networking environments.

## Long description

The BlueOptics 49Y7889-BL is a 5 m InfiniBand/fibre optic direct attach cable with a QSFP connector on one end and four SFP+ interfaces on the other. Designed for short-range high-speed connections in racks and between adjacent racks, this passive DAC (Direct Attach Cable) supports aggregated 40 Gbit/s links via a 4x10G configuration and is compatible with systems that accept QSFP-to-4xSFP+ passive twinax connections.
Advantages
This 5 m QSFP to 4xSFP+ cable provides a compact solution for high-throughput interconnects with low latency and low power consumption. Its passive twinax design requires no active electronics for 10G lanes when used with compatible ports, resulting in reduced failure points and lower operational power draw. Manufactured to MSA-compliant dimensions and assembled from established component vendors, the cable is intended to offer reliable year-round operation and simplified rack-level cabling.
Suitable for
Connecting QSFP-enabled switches or adapters to multiple SFP+ ports within the same rack or adjacent racks
40GBase-CR4 and 4x10GBase-CR short-reach interconnects
High-throughput links for Ethernet, FCoE and InfiniBand within data centre topologies
Key specifications
Cable length: 5 m
Connector type: QSFP (one end) to 4 × SFP+ (other end)
Data rate: aggregate up to 40 Gbit/s (4 × 10 Gbit/s lanes)
Cable type: passive twinax copper
Gauge: 26 AWG
Standard compliance: MSA-compliant QSFP/SFP+ mechanical interface dimensions
How to use
Install the cable by inserting the QSFP plug into the QSFP port of the source device and the four SFP+ plugs into the corresponding SFP+ ports of the destination device, ensuring proper orientation and full seating of each connector. Use this passive DAC where the hardware and firmware explicitly support passive QSFP-to-4xSFP+ direct attach cables and the intended transmission protocol. Avoid sharp bends near the connector ends, secure any strain relief, and confirm link status via the connected devices' interface indicators or management system.
Usage recommendations
For reliable operation, verify compatibility with the target switch, router or storage platform before deployment and test a single cable in your environment if possible. Install within racks or between adjacent racks to remain within the recommended short-reach distance and keep the cable route free from excessive mechanical stress or sources of electromagnetic interference.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 5 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP |
| Connector 2 | 4xSFP+ |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics 49Y7889-BL cost, and is it available for purchase?

The price is 192.99 € (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 04.08.2026 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/4465014/64289901_large.webp