# BlueOptics compatible QSFP+ Direct Attach Cable 40GBASE-CR4, Ethernet/Infiniband QDR, 30AWG, 3 m

**URL:** https://aio.lv/en/product--blueoptics-2231254-2-bl--12266992
**Data updated:** 2026-04-14 22:37 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 2231254-2-BL
**EAN:** 4063232351605
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.99 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 95.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-2231254-2-bl--12266992

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.08.2026 | free |
| Pickup points | 28.08.2026 | 1.79 EUR |
| Courier delivery to door | 28.08.2026 | 4.99 EUR |

## Summary description

Copper QSFP+ Direct Attach Cable by BlueOptics (compatible) for 40GBASE-CR4 links. Twinax 30AWG assembly supports 40 Gbps interconnects for Ethernet and InfiniBand QDR environments. Passive cable with QSFP+ connectors, 3-meter length — suitable for short-reach server-to-switch, switch-to-switch, and high-performance computing interconnects.

## Long description

BlueOptics compatible QSFP+ Direct Attach Cable 40GBASE-CR4, 3 m is a passive twinax copper assembly designed for short-reach 40 Gbps interconnects. The cable uses QSFP+ connectors and 30AWG conductors to support 40GBASE-CR4 links for Ethernet and InfiniBand QDR environments. With a 3-meter length it is intended for server-to-switch, switch-to-switch and high-performance computing interconnects that require low-latency and high-bandwidth copper connections.
Advantages
The cable provides a cost-effective, low-power option for establishing 40 Gbps links without the need for transceivers. Its passive twinax construction delivers consistent signal integrity for short distances while keeping power consumption and heat generation minimal. Compatibility with standard QSFP+ ports makes installation straightforward and interoperable with equipment that supports 40GBASE-CR4 and InfiniBand QDR electrical interfaces.
Suitable for
 Server-to-switch connections in data center racks
 Switch-to-switch links within the same rack or adjacent racks
 High-performance computing (HPC) node interconnects using InfiniBand QDR
 Short-reach aggregation and top-of-rack (ToR) deployments requiring 40 Gbps
When it may not be suitable
This passive QSFP+ Direct Attach Cable is designed for short-reach links and is not suitable for long-distance runs or campus backbone connections; optical fiber transceivers or active optical cables should be used for greater distances. It is also not intended for use where electrical isolation or extended EMI immunity provided by optical solutions is required.
Key specifications
 Data rate: 40 Gbps (4 lanes aggregated)
 Standard: 40GBASE-CR4 compatible
 Connector type: QSFP+ to QSFP+
 Cable conductor: 30AWG twinax copper
 Length: 3 m
 Supported protocols: Ethernet (40G) and InfiniBand QDR
 Passive (no active electronics or power required)
How to use
Insert each QSFP+ connector into the appropriate QSFP+ port on the networking devices until the connector latches. Confirm link status on both devices and verify the negotiated speed is 40 Gbps. For best performance keep cable runs within the specified 3 m length and avoid sharp bends or excessive pull force. Regularly inspect connectors for dust or debris and clean with appropriate tools before insertion if necessary.
What to consider before purchase
 Confirm that both devices have QSFP+ ports that support 40GBASE-CR4 or InfiniBand QDR electrical interfaces
 Verify that a 3 m passive twinax cable meets your rack layout and distance requirements
 Check interoperability requirements with your switch or server vendor documentation
 Consider whether an active optical cable or fiber transceivers are required for longer distances or optical isolation
Usage recommendations
Use this BlueOptics compatible QSFP+ Direct Attach Cable for short, high-bandwidth links inside racks or between adjacent racks. Ensure correct port compatibility and handle connectors gently to maintain signal quality and connector life.

## FAQ

### How much does the BlueOptics QSFP+ Direct Attach Cable 40GBASE-CR4 3 m cost, and is it available for purchase?

The price is 114.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 151 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 25.08.2026 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