# BlueOptics CAB-O-O-400G-0.5M-BL 400G Passive Twinaxial Direct Attach Copper Cable, 0.5m, OSFP to OSFP

**URL:** https://aio.lv/en/product--blueoptics-cab-o-o-400g-05m-bl--12585558
**Data updated:** 2026-07-20 04:09 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-O-O-400G-0.5M-BL
**EAN:** 4063232050850
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 280.49 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 231.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-o-o-400g-05m-bl--12585558

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.08.2026 | free |
| Pickup points | 21.08.2026 | 1.79 EUR |
| Courier delivery to door | 21.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics CAB-O-O-400G-0.5M-BL is a 0.5-meter passive 400 Gigabit Twinaxial copper Direct Attach Cable (DAC). Featuring OSFP male connectors on both ends, this high-speed interconnect solution is designed for reliable data transmission between networking hardware in racks. It provides a robust and efficient connection for high-density data center environments requiring 400G throughput.

## Long description

The BlueOptics CAB-O-O-400G-0.5M-BL is a high-performance 0.5-meter passive Twinaxial Direct Attach Copper (DAC) cable designed for ultra-fast 400G data transmission. Featuring OSFP male connectors on both ends, this cable provides a reliable and efficient interconnect solution for high-density networking environments. It is engineered to support demanding data center applications, ensuring seamless connectivity between switches, routers, and storage systems within or across adjacent racks.
Advantages
This passive DAC cable offers significant benefits for professional network infrastructures, primarily through its extremely low power consumption of less than 0.1 watts and minimal latency. By utilizing high-quality components from industry-leading manufacturers, the cable ensures exceptional signal integrity and long-term reliability. Its robust construction and adherence to MSA standards make it a cost-effective alternative to proprietary cables, providing the same high-speed performance without the premium price tag. The passive design also contributes to a lower failure rate, enhancing the overall availability of critical data links.
Suitable for
High-speed data center interconnections
Linking switches, routers, and storage systems
Short-distance rack-to-rack communication
Ethernet, FCoE, Fibre Channel, and InfiniBand applications
This cable is not suitable for long-distance data transmission, as passive copper technology is strictly limited to short reaches. It is also not compatible with hardware that does not explicitly support the 400G OSFP interface or the specific passive DAC transmission protocol.
Key specifications
Cable length: 0.5 m
Connector type: OSFP to OSFP
Data rate: Up to 400 Gbit/s
Cable type: Passive Twinaxial Copper
Color: Orange
Weight: 0.15 kg
How to use
Installation is straightforward due to the plug-and-play nature of the OSFP connectors. Simply insert the OSFP connector into the corresponding port on your networking hardware until it clicks into place. Ensure that the hardware is powered on and configured to support 400G passive DAC connections. No additional software configuration is typically required, as the cable is designed to be recognized automatically by compatible network devices.
What to consider before purchase
Verify that your networking hardware supports OSFP interfaces.
Ensure the 0.5-meter length is sufficient for your specific rack layout.
Confirm that your equipment supports passive copper DAC technology for 400G throughput.
Usage recommendations
For optimal performance and longevity, avoid bending the cable beyond its minimum bend radius and ensure that the connectors are kept clean and free of dust before insertion. Regularly monitor your network interface statistics to ensure stable link performance.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 400 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 0.5 m |
| Connector 1 | OSFP |
| Connector 2 | OSFP |
| Product colour | Orange |
| AWG wire size | 26 |
| Cable shape | Round |

### Weight & dimensions

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

### Operational conditions

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

### Packaging data

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

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Certificates

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

## FAQ

### How much does the BlueOptics CAB-O-O-400G-0.5M-BL 400G OSFP Direct Attach Cable cost, and is it available for purchase?

The price is 280.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 18.08.2026 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

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

When making a choice, we recommend paying attention to the key features: 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/12585558/68957812_large.webp