# KTI Networks KFS-0840 network switch 8 RJ-45 ports IEEE 802.3

**URL:** https://aio.lv/en/product--kti-networks-kfs-0840--4586685
**Data updated:** 2025-12-29 17:33 (EET)
**Category:** Network Switches
**Manufacturer:** kti networks
**Manufacturer code:** KFS-0840
**EAN:** 8716065256321
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 164.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 135.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kti-networks-kfs-0840--4586685

## 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

The KTI Networks KFS-0840 is a network switch featuring 8 RJ-45 Ethernet ports. It supports full duplex communication and complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3x standards. The device is powered via a DC-in jack, making it suitable for various networking environments.

## Long description

The KTI Networks KFS-0840 network switch provides eight 10/100 Mbps RJ-45 copper ports for connecting Ethernet and Fast Ethernet devices. It supports IEEE 802.3, IEEE 802.3u and IEEE 802.3x standards and is powered via a DC-in jack. Auto-negotiation automatically configures link speed and duplex, while auto MDI/MDI-X (auto-crossover) simplifies cable selection by detecting and switching transmit/receive pairs as needed. The switch is designed for mounting flexibility and industrial environments.
Advantages
The switch offers automatic link configuration (auto-negotiation) and auto MDI/MDI-X to reduce manual setup and cable type concerns. It supports IEEE 802.3x flow control for full-duplex and back-pressure flow control for half-duplex operation, improving traffic handling. The device accepts a wide power input range, supports DIN-rail and panel mounting, and meets industrial emission and immunity performance levels for use in temperature-critical environments.
Suitable for
Small to medium Ethernet networks requiring 8-port Fast Ethernet connectivity
Industrial or temperature-sensitive installations
Environments needing DIN-rail or panel mounting
Applications where automatic cable-type detection and simplified setup are preferred
Key specifications
Ports: 8 × 10/100 Mbps RJ-45 copper
Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x
Flow control: IEEE 802.3x (full-duplex), back-pressure (half-duplex)
Auto features: Auto-negotiation; Auto MDI/MDI-X (auto-crossover)
Power: DC-in jack, wide input voltage range supported
Mounting: DIN-rail and panel mounting supported
Environmental: Wide operating temperature range; industrial-rated emission and immunity
How to use
Install the KTI Networks KFS-0840 on a DIN-rail or panel according to the mounting instructions. Connect devices using standard Cat5/Cat5e/Cat6 cables to the RJ-45 ports; the switch will detect cable type and set link speed and duplex through auto-negotiation and auto MDI/MDI-X. Connect the DC power supply to the DC-in jack within the supported voltage range. Monitor link LEDs (if available) to confirm active connections and correct operation.
Usage recommendations
For stable operation in industrial or temperature-critical sites, use a properly rated DC power source and secure DIN-rail or panel mounting. Choose shielded or unshielded twisted-pair cables consistent with installation requirements and check that connected devices support the negotiated speeds.

## Specifications

### Other features

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 40 x 80 x 95 |
| Networking features | Fast Ethernet |
| Connectivity technology | Wired |
| Power LED | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -20 - 85 |
| Operating temperature (T-T) | -10 - 70 |
| Storage relative humidity (H-H) | 10 - 90 |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 2.2 W |
| Input voltage | 7 - 30 |

### Design

| Feature | Value |
|---|---|
| Safety | FCC A, CE A, EN60950-1 |
| LED indicators | Status, Power, Link |
| Stackable | No |

### Data transmission

| Feature | Value |
|---|---|
| Supported data transfer rates | 10/100 Mbps |
| Maximum data transfer rate | 0.1 Gbit/s |

### Ports & interfaces

| Feature | Value |
|---|---|
| Basic switching RJ-45 Ethernet ports quantity | 8 |
| Power connector | DC-in jack |

### Power over Ethernet (PoE)

| Feature | Value |
|---|---|
| Power over Ethernet (PoE) | No |

### Network

| Feature | Value |
|---|---|
| Full duplex | Yes |
| Networking standards | IEEE 802.3x, IEEE 802.3u, IEEE 802.3 |
| Flow control support | Yes |
| Auto MDI/MDI-X | Yes |
| 10G support | No |
| Copper ethernet cabling technology | 100BASE-TX, 10BASE-T |

## FAQ

### How much does the Network switch KTI Networks KFS-0840 cost, and is it available for purchase?

The price is 164.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 kti networks 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 kti networks 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: basic switching rj-45 ethernet ports quantity, 10g support, networking standards, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4586685/54787007_large.webp