# DAC Cable BlueOptics AT-QSFP28-2CU-BL QSFP28 QSFP28 InfiniBand 2m Black

**URL:** https://aio.lv/en/product--blueoptics-at-qsfp28-2cu-bl--10967345
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** AT-QSFP28-2CU-BL
**EAN:** 4063232330693
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 102.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-at-qsfp28-2cu-bl--10967345

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics AT-QSFP28-2CU-BL is a 2-meter DAC cable designed for high-speed data transmission. It features QSFP28 connectors on both ends, ensuring compatibility with InfiniBand standards. This cable is ideal for data centers and high-performance computing environments, providing reliable connectivity with minimal latency. Its black design adds a professional touch to your setup.

## Long description

The BlueOptics AT-QSFP28-2CU-BL is a 2-meter direct attach copper (DAC) cable with QSFP28 connectors on both ends, designed for high-speed links in data center and high-performance computing environments. The cable supports InfiniBand-compatible interconnects and provides a short-reach, low-latency connection between QSFP28 ports. Its black jacket and compact form factor allow clean rack routing while maintaining signal integrity for 100Gbps-class connections where DAC is appropriate.
Advantages
This QSFP28 DAC cable offers a reliable, low-latency physical connection with minimal power consumption compared with active optical alternatives. The fixed 2 m length simplifies planning for adjacent switches or server-to-switch links and reduces the need for additional transceivers. The QSFP28-to-QSFP28 mechanical interface is compatible with devices that accept InfiniBand-style QSFP28 copper interconnects, and the robust black jacket helps protect the internal conductors against wear in rack environments.
Suitable for
Short-reach server-to-switch connections in data centers
Interconnects in high-performance computing (HPC) clusters
InfiniBand fabric links requiring QSFP28 copper cabling
Top-of-rack and adjacent-rack connections where 2 m length is sufficient
Key specifications
Cable type: Direct attach copper (DAC)
Length: 2 m
Connectors: QSFP28 to QSFP28
Typical application: Short-reach high-speed interconnects (InfiniBand-compatible)
Weight: 0.2 kg
Colour: Black
How to use
Locate the QSFP28 ports on the devices you intend to interconnect and ensure both ports support DAC copper connections. Align the QSFP28 connectors with the port openings and insert the cable until the latch engages; confirm a secure mechanical fit. After connection, verify link status on each device and configure any required interface settings in the switch or host operating system. For removal, release the connector latch before pulling the cable straight out to avoid damaging the port.
Usage recommendations
Use this 2 m DAC cable for short, direct connections inside racks or between adjacent racks. Avoid tight bends near the connector ends and maintain recommended bend radius for copper cables. Do not exceed the specified cable length for expected signal and performance characteristics; if longer runs are required, consider optical transceivers and fibre cabling. Ensure QSFP28 ports are compatible with passive copper DAC cables before deployment.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 2 m |
| Cable type | DAC |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Product colour | Black |
| AWG wire size | 30 |
| Ethernet interface type | 100 Gigabit Ethernet |
| Brand compatibility | Extreme Networks |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Fastening type | Push–pull |
| Cable shape | Round |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.2 kg |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 210 g |
| Package type | Polybag |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | CE, Federal Communications Commission (FCC), RoHS |

## FAQ

### How much does the DAC Cable BlueOptics AT-QSFP28-2CU-BL cost, and is it available for purchase?

The price is 124.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 270 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 29.07.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable type, cable length, connector 1, connector 2, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10967345/64099015_large.webp