# BlueOptics InfiniBand/fibre optic cable 5 m QSFP28 4xSFP28 Black

**URL:** https://aio.lv/en/product--blueoptics-332-1661-bl--4472598
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 332-1661-BL
**EAN:** 4063232008158
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 290.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 240.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-332-1661-bl--4472598

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics 332-1661-BL is a 5 m InfiniBand/fibre optic cable featuring a QSFP28 connector and four SFP28 connectors. It is designed for high-speed data transmission and offers reliable performance for data centers and networking applications. The male-to-male connectors ensure easy connectivity and compatibility with various devices.

## Long description

The BlueOptics InfiniBand/fibre optic cable 5 m QSFP28 4xSFP28 Black is a 5-metre high-speed direct attach cable with a QSFP28 plug on one end and four SFP28 plugs on the other. Designed for short-reach connections in racks and adjacent racks, this passive twinax copper solution supports aggregate link speeds up to 100 Gbit/s and is suitable for Ethernet, Fibre Channel, FCoE and InfiniBand protocols where the connected hardware supports passive DAC links. The cable uses 26 AWG conductors and follows MSA-compatible mechanical and electrical specifications to ensure interoperability with major networking platforms.
Advantages
This QSFP28 to 4xSFP28 cable provides a compact and reliable way to break out a 100G QSFP28 port into four independent 25G SFP28 ports without active transceivers. The passive twinax construction yields low latency and low power consumption compared with active optical transceivers. MSA-compliant dimensions and pinout improve compatibility with switches, routers and storage systems that accept passive DACs. The 5 m length is suited to common rack and neighbouring-rack layouts and the durable cable assembly is intended for long service life in data centre environments.
Suitable for
Breaking out a 100G QSFP28 port into 4x25G SFP28 ports in top-of-rack and aggregation setups
Short-distance connections inside racks or between adjacent racks
High-throughput links for Ethernet, FCoE, Fibre Channel or InfiniBand where passive DACs are supported
Interconnecting switches, routers and storage arrays that accept QSFP28 and SFP28 passive interfaces
Key specifications
Cable type: passive twinax (Direct Attach Cable)
Connector A: QSFP28 (male)
Connector B: 4 × SFP28 (male)
Length: 5 metres
Aggregate data rate: up to 100 Gbit/s (4×25G lanes)
Wire gauge: 26 AWG
Standards: MSA-compliant form factor and electrical signalling for QSFP28/SFP28 passive links
How to use
Before installation, verify that both ends of the link support passive DAC operation and the intended protocol (Ethernet, FCoE, Fibre Channel or InfiniBand). Power down or follow hot-plug guidance of your devices, align the QSFP28 plug with the QSFP28 socket and insert until it seats securely, then connect the four SFP28 plugs to the corresponding SFP28 ports. Apply gentle strain relief and route the cable to avoid sharp bends; maintain the manufacturer’s recommended bend radius. After connecting, check link status on the devices and confirm negotiated speeds and lane mapping in the switch/router interfaces.
Usage recommendations
Use this passive 5 m QSFP28 to 4xSFP28 cable for short, high-density connections where low latency and low power are priorities. Confirm hardware compatibility with passive DACs in advance and avoid exceeding the recommended bend radius or exposing the assembly to mechanical stress to preserve long-term performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 5 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics 332-1661-BL cost, and is it available for purchase?

The price is 290.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 31.07.2026 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/4472598/64305008_large.webp