# CBO QSFP Male-to-Male Cable F66V4-BL 0.5 m — 40 Gbit/s

**URL:** https://aio.lv/en/product--blueoptics-f66v4-bl--4470815
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** F66V4-BL
**EAN:** 4063232009933
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 78.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 65.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-f66v4-bl--4470815

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Direct-attach CBO QSFP male-to-male cable F66V4-BL, 0.5 m length, supporting 40 Gbit/s data rates. Designed for short-reach connections between QSFP ports in switches, routers and servers. Provides a compact, low-latency link for high-speed networking and data center interconnects where a short fixed-length copper/active cable is required.

## Long description

Direct-attach CBO QSFP male-to-male cable F66V4-BL 0.5 m is a short, fixed-length high-speed interconnect designed to link QSFP ports at 40 Gbit/s. The 0.5 m cable provides a compact physical connection for switches, routers and servers where low latency and minimal signal loss are required. This cable is suitable for short-reach applications in data centers, network racks and aggregation points where a reliable copper or active direct attach solution is preferred over optical transceivers.
Advantages
This QSFP male-to-male cable delivers a consistent 40 Gbit/s throughput with reduced power consumption compared with discrete optical modules and transceivers. The short fixed length minimizes crosstalk and insertion loss while providing easy plug-and-play installation. Ruggedized connectors and a flexible jacket support tight cable management in dense rack environments, and the design reduces the need for additional transceiver inventory and fiber patching.
Suitable for
 Short-reach server-to-switch connections in data centers
 Switch-to-switch links within the same rack or adjacent racks
 High-throughput aggregation and top-of-rack networking
 Low-latency connections for storage and compute clusters
Key specifications
 Connector type: QSFP male-to-male
 Maximum data rate: 40 Gbit/s
 Cable length: 0.5 m (fixed)
 Transmission medium: direct-attach copper / active cable (short-reach)
 Typical use: short-reach interconnects between network devices
How to use
Insert each QSFP connector into the corresponding QSFP port on your switch, router or server until it latches. Ensure both ends are seated properly and that ports are powered and configured for 40 Gbit/s operation. Avoid excessive bending of the cable near the connector; maintain gentle radii in accordance with rack layout to prevent mechanical stress. If the cable is an active variant, verify compatibility with the host device firmware and enable any required auto-negotiation settings.
Usage recommendations
Use this short 0.5 m QSFP cable for intra-rack and adjacent-rack links where fixed-length, low-latency connections are needed. Keep spare cables of matching length for predictable signal behaviour and simplify inventory by standardizing on this cable type for similar short-reach links.

## FAQ

### How much does the CBO QSFP Cable F66V4-BL 0.5 m cost, and is it available for purchase?

The price is 78.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 118 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 07.08.2026 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

## Image

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