# BlueOptics R4G19A-BL InfiniBand fibre optic cable 1 m SFP28 Male Male

**URL:** https://aio.lv/en/product--blueoptics-r4g19a-bl--5039014
**Data updated:** 2026-03-07 15:11 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** R4G19A-BL
**EAN:** 4063232261621
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-r4g19a-bl--5039014

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.08.2026 | free |
| Pickup points | 25.08.2026 | 1.79 EUR |
| Courier delivery to door | 25.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics R4G19A-BL is a 1 m InfiniBand fibre optic cable featuring SFP28 connectors. Designed for high-speed data transfer, it ensures reliable connectivity between devices. The cable is male to male, making it suitable for direct connections in networking environments.

## Long description

The BlueOptics R4G19A-BL InfiniBand fibre optic cable 1 m SFP28 Male Male is a 1 meter direct attach solution designed for high-speed short-reach connections. With SFP28 connectors on both ends, the cable supports 25 Gbps-class links and is suitable for linking switches, routers and storage equipment that accept SFP28 interfaces. The construction is intended for reliable electrical signal transmission in rack and adjacent-rack environments where passive direct attach cabling is supported.
Advantages
This cable provides a compact, low-latency connection with predictable performance for 25G applications. As a passive direct attach cable it consumes minimal power, requires no separate transceivers, and reduces component count in rack deployments. The product is built to industry MSA guidelines and uses components selected for longevity and consistent compatibility with platforms that support the equivalent 25G direct attach specification.
Suitable for
Short-reach interconnects between switches and top-of-rack devices
Connections between storage arrays and host adapters supporting 25G SFP28
High-density rack installations with adjacent-rack cabling needs
Environments requiring low-latency, low-power direct attach links
Key specifications
Length: 1 meter
Connector type: SFP28 male to SFP28 male
Transmission rate: up to 25 Gbps per lane (25G class direct attach)
Cable type: passive direct attach twinax (copper) suitable for short distances
Wire gauge: 30 AWG
Compliance: MSA-compliant design
How to use
Install the cable by firmly inserting each SFP28 connector into the corresponding SFP28 port on your networking equipment until the latch engages. Ensure both endpoints support passive direct attach twinax connections and the 25G protocol you intend to run (Ethernet, FCoE, or InfiniBand). Route the cable within the rack or between adjacent racks avoiding tight bends and excessive mechanical strain. No external power or transceivers are required for passive operation.
Usage recommendations
Verify platform support and firmware compatibility before deployment; test a sample connection on critical links to confirm link training and protocol operation. Keep the cable within recommended bend radius limits and avoid exposure to sharp edges or heavy compression to maintain signal integrity and long service life.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.08 kg |
| Package weight | 90 g |
| Cable length | 1 m |
| Data transfer rate | 25 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | SFP28 |
| Connector 2 | SFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand cable BlueOptics R4G19A-BL cost, and is it available for purchase?

The price is 66.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 365 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 20.08.2026 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/5039014/64339205_large.webp