# Direct Attach Cable BlueOptics 3HE08590AA 40GBASE-CR4 1 m

**URL:** https://aio.lv/en/product--blueoptics-3he08590aa-bl--5041209
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 3HE08590AA-BL
**EAN:** 4063232256108
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 59.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-3he08590aa-bl--5041209

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Direct Attach Cable BlueOptics 3HE08590AA is a 1-meter passive twinax cable designed for 40GBASE-CR4 connectivity. It provides a direct copper link between compatible network devices for short-reach 40 Gbps links, suitable for top-of-rack switches, server interconnects, and data center aggregation where low-latency, high-bandwidth short-distance connections are required.

## Long description

Direct Attach Cable BlueOptics 3HE08590AA 40GBASE-CR4 1 m is a 1‑metre passive twinax copper cable engineered for short-reach 40 Gbps links. The cable implements the 40GBASE-CR4 electrical interface and provides a direct, low-latency connection between compatible QSFP+ or QSFP28 ports on top-of-rack switches, servers and aggregation equipment in data center environments. Its fixed length and integrated connectors simplify cabling in high-density racks and reduce the need for optical transceivers for short interconnects.
Advantages
The passive twinax design offers deterministic low latency and high signal integrity for 40 Gbps connections while consuming no power for active components. A 1 m length delivers predictable reach for adjacent rack units and short top-of-rack runs, and the compact, integrated connector housings reduce port density footprint compared with separate transceiver-and-fiber assemblies. The cable is suitable for environments where predictable electrical performance and cost-efficient short-distance connectivity are priorities.
Suitable for
Top-of-rack switch to server connections within the same rack or adjacent racks
Switch-to-switch aggregation in short-reach data center rows
High-density patching panels and server interconnects requiring 40 Gbps over copper
Environments where low latency and predictable electrical performance are required
Key specifications
Interface: 40GBASE-CR4 electrical twinax
Connector type: QSFP family direct-attach integrated connectors
Cable type: Passive twinax copper
Length: 1 metre
Data rate: 40 Gbps aggregate
Use: Short-reach, within-rack or adjacent-rack interconnects
How to use
Insert each end of the cable into compatible QSFP-format ports on the devices to be connected until the connector latches engage. Verify link status on both devices and confirm that interface settings (40 Gbps mode and lane mapping) are configured as required by the switch or server OS. For hot-plug capable ports, the cable can be inserted or removed while equipment is powered, following vendor guidelines. Avoid excessive bending near the connectors and route the cable to prevent strain or interference from power cables.
Usage recommendations
For reliable operation, use this 1 m passive twinax cable for short, within-rack or adjacent-rack connections where 40GBASE-CR4 electrical compatibility is supported by both endpoints. Keep bend radius above manufacturer minimums, avoid sharp kinks, and ensure proper airflow and cable management in dense rack deployments. Check device compatibility lists for supported QSFP direct-attach assemblies before installation.

## FAQ

### How much does the BlueOptics 3HE08590AA Direct Attach Cable 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 — 147 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 23.07.2026 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