# InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0944-MS28C05M-BL 0.5 m SFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-cbl-ntwk-0944-ms28c05m-bl--5039244
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CBL-NTWK-0944-MS28C05M-BL
**EAN:** 4063232261560
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cbl-ntwk-0944-ms28c05m-bl--5039244

## 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 CBL-NTWK-0944-MS28C05M-BL is a 0.5 m InfiniBand/fibre optic cable featuring SFP28 connectors on both ends. Designed for high-speed data transmission, this cable ensures reliable connectivity for data centers and networking applications. Its male/male configuration makes it versatile for various setups, providing optimal performance in data transfer and communication.

## Long description

The BlueOptics CBL-NTWK-0944-MS28C05M-BL is a 0.5 m InfiniBand/fibre optic direct attach cable with SFP28 male connectors on both ends, designed for short-reach high-speed links in racks and adjacent rack connections. The cable supports 25G data rates and is suitable for electrical twinax direct attach use where SFP28 ports are present. Its compact half-metre length reduces excess cabling in dense rack environments while providing a direct low-latency connection between compatible network devices.
Advantages
This 0.5 m SFP28 male-to-male cable offers a low-latency, low-power connectivity option for short-distance interconnects, supporting Ethernet, Fibre Channel, FCoE and InfiniBand protocols up to 25 Gbit/s. The passive design simplifies deployment in hardware platforms that accept passive DAC twinax cables and reduces the number of active components in the link. The short length helps maintain signal integrity and minimizes cable management complexity in populated racks.
Suitable for
Connecting SFP28 ports on switches, routers and storage systems within the same rack or adjacent racks
High-speed server-to-switch links in data centers and network closets
Short-reach InfiniBand or 25G Ethernet interconnects where passive twinax DACs are supported
Key specifications
Connector type: SFP28 male to SFP28 male
Length: 0.5 metres
Supported data rate: up to 25 Gbit/s
Cable type: passive direct attach (twinax/twinaxial copper for short-reach electrical signaling)
Wire gauge reference: 30 AWG
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on the devices to be linked, ensuring the connectors latch securely. Use this cable only where the hardware vendor specifies support for passive DAC or 25GBase-CR connections. Confirm device firmware and port settings accept passive twinax Direct Attach Cables to ensure link negotiation at the required speed and protocol. No additional power or inline transceivers are required for passive operation.
Usage recommendations
Route the cable to avoid sharp bends and mechanical strain; maintain the minimum bend radius recommended for 30 AWG twinax cables. For reliable operation, use this cable for short-reach connections (within rack or adjacent racks) and verify compatibility with the switch, router or storage system before deployment.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.08 kg |
| Package weight | 90 g |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 0.5 m |
| Data transfer rate | 25 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | SFP28 |
| Connector 2 | SFP28 |
| AWG wire size | 30 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0944-MS28C05M-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 — 400 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

## Image

https://aio.lv/img/cache/product/5039244/64340331_large.webp