# Direct Attach Cable BlueOptics QSFP 40GBASE-CR4 1 m (BlueLAN 10312)

**URL:** https://aio.lv/en/product--blueoptics-10312-bl--5059696
**Data updated:** 2026-03-07 15:13 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 10312-BL
**EAN:** 4049759257743
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 59.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-10312-bl--5059696

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

BlueOptics BlueLAN 10312 is a QSFP direct attach copper cable (DAC) supporting 40GBASE-CR4 with a 1 meter length. Designed for short-reach 40 Gigabit Ethernet interconnects between QSFP ports, the passive DAC provides a low-latency, cost-effective fixed-cable connection for switches, routers and servers in data centers and network racks.

## Long description

BlueOptics BlueLAN 10312 is a 1 meter QSFP direct attach copper (DAC) cable engineered for 40GBASE-CR4 links. This passive DAC assembly connects QSFP ports on switches, routers and servers to provide a fixed short-reach interconnect with low latency and stable electrical performance. The single-cable solution eliminates the need for transceivers and fibers in short-distance rack and cabinet connections, simplifying installation and reducing per-port cost in data center topologies.
Advantages
The BlueLAN 10312 offers predictable latency and low power consumption compared with active optical alternatives. Its fixed-length copper construction ensures consistent signal integrity for 40 Gigabit Ethernet over a 1 m reach, while the QSFP form factor maintains broad compatibility with QSFP ports that accept passive DACs. The cable is a cost-effective option for dense rack-to-rack or chassis-to-chassis connections where range requirements are within the supported short-reach distance.
Suitable for
40 Gigabit Ethernet interconnects between QSFP-equipped switches
Server-to-switch connections in data center racks
High-density patching inside network cabinets and top-of-rack deployments
Short-reach links where low latency and low power are prioritized
Key specifications
Interface: QSFP to QSFP (direct attach copper)
Data rate: 40 Gbps (40GBASE-CR4)
Length: 1 meter
Cable type: Passive copper assembly
Typical use: Short-reach rack/cabinet interconnects
How to use
Install the BlueOptics QSFP 40GBASE-CR4 DAC by inserting each QSFP connector into the corresponding QSFP port on your network devices, ensuring connectors are fully seated and latches engage. No additional configuration is required on the cable itself; verify that the host devices support passive QSFP DACs and 40GBASE-CR4 operation. Route the cable to avoid sharp bends and excessive strain, and secure it in the rack to maintain cable management and airflow.
Usage recommendations
Use this passive DAC for short, high-density connections within racks or between adjacent racks. Confirm device compatibility with QSFP passive copper assemblies and follow manufacturer guidelines for operating temperature and bend radius to preserve performance and reliability.

## FAQ

### How much does the BlueOptics QSFP Direct Attach Cable 40G 1 m cost, and is it available for purchase?

The price is 71.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 150 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 15.07.2026 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