# QNAP CAB-DAC30M-SFP28 InfiniBand/fibre optic cable 3 m QSFP28 Black

**URL:** https://aio.lv/en/product--qnap-cab-dac30m-sfp28--4583209
**Data updated:** 2026-01-13 21:24 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** QNAP
**Manufacturer code:** CAB-DAC30M-SFP28
**EAN:** 4713213519004
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 121.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 100.82 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qnap-cab-dac30m-sfp28--4583209

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The QNAP CAB-DAC30M-SFP28 is a 3-meter InfiniBand/fibre optic cable featuring QSFP28 connectors on both ends. It is designed for high-speed data transfer and reliable connectivity in data centers and networking environments. This cable ensures optimal performance and minimal latency for demanding applications.

## Long description

The QNAP CAB-DAC30M-SFP28 InfiniBand/fibre optic cable 3 m QSFP28 Black is a 3-metre direct-attach cable with QSFP28 connectors at both ends, engineered for high-throughput, low-latency connections in rack, server and switch environments. It supports reliable data transfer for storage arrays, high-performance computing clusters and virtualised network infrastructures where low latency and consistent bandwidth are required.
Advantages
This cable provides a compact and durable connection solution that minimises signal loss and reduces latency compared with longer or passive copper alternatives. The QSFP28-terminated design enables 100Gbps-class links when used with compatible ports, offering stable performance for sustained workloads. The 3-metre length balances reach and cable management in dense rack installations while the robust jacket protects against wear and accidental strain.
Suitable for (tasks / use cases)
 High-performance computing clusters and InfiniBand fabrics
 Interconnecting 100GbE-capable switches and network adapters
 Direct-attached storage or SAN links in data centre racks
 Latency-sensitive applications such as virtualization and database replication
Key specifications
 Connector type: QSFP28 on both ends
 Length: 3 metres
 Supported interface: InfiniBand / fibre optic compatible QSFP28 ports
 Typical use: high-speed direct-attach connections between switches, servers and storage
 Colour: black
How to use
Insert each QSFP28 connector into the corresponding port on the networking devices until the connector latches. Ensure devices are compatible with QSFP28 and configured for the intended link speed and protocol. Route the cable in the rack or cabinet to avoid tight bends and secure it with cable management ties if required. After physical connection, verify link status and speed in device management interfaces and adjust link settings or firmware as needed to achieve expected performance.
Usage recommendations
For optimal results, use this cable in matched QSFP28-capable ports and keep bend radius within manufacturer guidelines. Avoid excessive tension and repeated flexing; check link health after installation and when adding or removing equipment. Use appropriate airflow and cable management to maintain cooling and accessibility in dense installations.

## Specifications

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Data transfer rate | 25 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Harmonized System (HS) code | 85447000 |

## FAQ

### How much does the QNAP CAB-DAC30M-SFP28 InfiniBand cable cost, and is it available for purchase?

The price is 121.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 09.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can QNAP CAB-DAC30M-SFP28 InfiniBand cable be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 QNAP 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 QNAP 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/4583209/54602689_large.webp