# BlueOptics QSFP Direct Attach Cable 40GBASE-CR4, 3 m

**URL:** https://aio.lv/en/product--blueoptics-10313-bl--5059695
**Data updated:** 2026-03-07 15:13 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 10313-BL
**EAN:** 4049759257750
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 102.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 84.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-10313-bl--5059695

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

BlueOptics QSFP Direct Attach Cable is a 3-meter passive copper DAC supporting 40GBASE-CR4 for short-range high-speed connections between QSFP ports. The cable provides direct attachment for switches, servers and network devices with QSFP interfaces, enabling 40 Gbps aggregated throughput and low-latency links in data centers and campus networks.

## Long description

BlueOptics QSFP Direct Attach Cable 40GBASE-CR4, 3 m is a passive copper direct-attach cable designed for short-reach 40 Gbps connections between devices with QSFP ports. The 3-meter cable supports 40GBASE-CR4 electrical signaling to provide a cost-effective, low-latency interconnect for switches, servers and other network equipment in data centres and campus networks. The assembly integrates a QSFP connector at each end and is suitable for use where optical transceivers are not required or where copper DACs provide sufficient reach and performance.
Advantages
The cable delivers aggregated 40 Gbps throughput with minimal power consumption because it is a passive copper solution. It provides predictable latency and stable performance for short-range links, simplifies deployment with plug-and-play QSFP connectors, and reduces total cost of ownership compared with transceiver-plus-fibre cabling for equivalent short-distance connections.
Suitable for
 Inter-rack and intra-rack connections between QSFP-enabled switches and routers
 Server to top-of-rack switch links in data centres
 Short-range uplink aggregation and high-throughput links in campus networks
 Environments where low latency and minimal power usage are required
Key specifications
 Form factor: QSFP direct attach cable (DAC)
 Data rate: 40 Gbps (4 lanes, 10 Gbps per lane)
 Standard: 40GBASE-CR4 electrical signalling
 Cable length: 3 m
 Connector type: QSFP to QSFP
 Cable medium: Passive copper
 Typical use: Short-reach, low-latency interconnects
How to use
Insert each QSFP connector into the corresponding QSFP port on the network devices until the retention latch engages. Ensure both ends are fully seated and that the connected devices are powered and configured for 40G operation on the ports. No additional configuration is typically required on devices that recognise passive QSFP DACs; verify link status and speed in the device management interface and replace if any physical damage to the cable or connectors is observed.
Usage recommendations
Use the cable within rack or between adjacent racks where the 3 m length is appropriate; avoid tight bends and excessive force on the connector latches. Keep connectors free of dust and handle with care when inserting and removing to maintain reliable electrical contact and low-latency performance.

## FAQ

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

The price is 102.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 153 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 16.07.2026 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