# InfiniBand/fibre optic cable BlueOptics TAPCABLE28-50CM-BL 0.5 m SFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-tapcable28-50cm-bl--4471670
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** TAPCABLE28-50CM-BL
**EAN:** 4063232055886
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-tapcable28-50cm-bl--4471670

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics TAPCABLE28-50CM-BL is a 0.5 m InfiniBand/fibre optic cable featuring SFP28 connectors. It provides reliable data transmission with male-to-male connectors, ideal for high-speed networking applications.

## Long description

The BlueOptics TAPCABLE28-50CM-BL is a 0.5 m InfiniBand/fibre optic direct attach cable with SFP28 male-to-male connectors designed for short-range high-speed connections. It supports 25GBase-CR class transmissions over a 0.5 meter passive twinax link and is MSA-compliant for physical and electrical interoperability with SFP28 ports. The cable is intended for use in rack-level links between switches, servers and storage systems where a compact, low-latency copper direct attach solution is required.
Advantages
This BlueOptics SFP28 direct attach cable provides a compact, low-power and low-latency connection for short-distance links. As a passive 25G twinax cable it requires no active electronics, keeping power consumption and failure points to a minimum. The cable is manufactured to MSA mechanical and electrical specifications and uses high-quality components to achieve consistent performance and long service life for rack and adjacent-rack interconnects.
Suitable for
Short-range connections between switches, routers and servers within racks or adjacent racks
25 Gigabit Ethernet, FCoE and InfiniBand links up to 25 Gbit/s on 0.5 m distance
High-density data centre patching and top-of-rack interconnects where low latency is required
Replacement of OEM SFP28 DAC connections in systems that support compatible passive DAC cables
Key specifications
Length: 0.5 m (50 cm)
Connector type: SFP28 male to SFP28 male
Transmission: Passive twinax copper for 25GBase-CR class
Wire gauge: approx. 30 AWG twinax conductors
Compliance: MSA-defined SFP28 DAC electrical and mechanical specifications
Typical use: short-distance rack-level interconnects with low latency and low power consumption
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on the network devices until the connector latch engages. Ensure that both devices support passive SFP28 DACs and the selected transmission protocol (for example 25G Ethernet or InfiniBand). Avoid sharp bends and excessive pulling force on the cable; maintain the minimum bend radius recommended by the vendor. For best results, power down ports only if required by your hardware maintenance procedures and follow any platform-specific guidance for link negotiation and firmware compatibility.
Usage recommendations
Use this 0.5 m SFP28 direct attach cable for short, permanent rack-level links where passive twinax reduces latency and power use. Verify platform compatibility with passive SFP28 DAC cables and, where possible, request a test sample to confirm full functionality in your hardware environment.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.08 kg |
| Package weight | 90 g |
| Cable length | 0.5 m |
| Product colour | Black |
| Connector 1 | SFP28 |
| Connector 2 | SFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics TAPCABLE28-50CM-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 — 402 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 27.07.2026 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/4471670/64302717_large.webp