# DAC Cable BlueLan R8M59A-BL QSFP28 InfiniBand 0.5m Black

**URL:** https://aio.lv/en/product--blueoptics-r8m59a-bl--11083148
**Data updated:** 2026-02-25 16:40 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** R8M59A-BL
**EAN:** 4063232334141
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-r8m59a-bl--11083148

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The BlueLan R8M59A-BL is a high-performance DAC cable designed for InfiniBand applications. With a length of 0.5 meters, it features QSFP28 connectors on both ends, ensuring reliable data transmission. This cable is ideal for connecting high-speed devices in data centers, providing low latency and high bandwidth. Its durable black design ensures longevity and resistance to wear, making it a perfect choice for demanding environments.

## Long description

The BlueLan R8M59A-BL QSFP28 InfiniBand DAC Cable is a 0.5 m direct-attach copper solution engineered for short-reach, high-throughput interconnects in data center environments. Designed with QSFP28 connectors on both ends, this DAC cable supports low-latency, high-bandwidth links between InfiniBand-enabled switches, adapters and storage devices. Its black jacket and robust construction provide mechanical durability for dense rack deployments while maintaining signal integrity for demanding applications.
Advantages
This DAC cable delivers a compact, low-power physical connection that eliminates the need for transceivers and fiber transceivers for short distances, reducing cost and complexity. The QSFP28-to-QSFP28 configuration ensures straightforward plug-and-play installation and stable electrical performance. With a 0.5 m length the cable minimizes signal loss and latency for high-performance computing and storage traffic, and its durable black outer jacket improves resistance to abrasion in crowded cable runs.
Suitable for
 High-performance computing clusters and InfiniBand fabrics
 Direct connections between switches, routers and adapters in racks
 Short-reach links in data centers and server rooms
 Storage area network connections requiring low latency
Key specifications
 Cable length: 0.5 m
 Cable type: Direct attach copper (DAC)
 Connectors: QSFP28 to QSFP28
 Suitable interface: InfiniBand high-speed links
 Weight: 0.15 kg
 Colour: Black
How to use
Ensure both devices support QSFP28 InfiniBand connections and are powered off or in a safe state for hot-plugging according to the equipment manufacturer’s guidance. Align the QSFP28 connectors with the device ports and insert until the latch engages; confirm a secure mechanical connection. After installation, verify link status in the host or switch management interface and monitor for expected bandwidth and latency parameters. For removal, release the connector latch and gently extract the cable to avoid stressing the port.
Usage recommendations
Route the cable to avoid sharp bends and excessive tension; maintain minimum bend radius recommended by the enclosure or system vendor. Use short DAC lengths like 0.5 m for the lowest latency and best signal integrity in top-of-rack or adjacent-rack connections. Check compatibility with your InfiniBand switch or adapter firmware if link negotiation issues occur.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |
| Bending radius | 5 mm |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 0.5 m |
| Cable type | DAC |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Product colour | Black |
| Jacket material | Polyvinyl chloride (PVC) |
| AWG wire size | 30 |
| Brand compatibility | HPE |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Cable shape | Round |

### Other features

| Feature | Value |
|---|---|
| Cable diameter | 4.2 mm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.15 kg |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 160 g |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

## FAQ

### How much does the DAC Cable BlueLan R8M59A-BL cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 233 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 16.07.2026 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 length, cable type, 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/11083148/64099097_large.webp