# Network switch MikroTik CRS112-8P-4S-IN — 8x Gigabit RJ-45 PoE (IEEE 802.3af/at), 4x SFP

**URL:** https://aio.lv/en/product--mikrotik-1030011--12369462
**Data updated:** 2026-04-23 13:19 (EEST)
**Category:** Network Switches
**Manufacturer:** MikroTik
**Manufacturer code:** 1030011
**EAN:** 5704174116691
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 205.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 170.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mikrotik-1030011--12369462

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.89 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

MikroTik CRS112-8P-4S-IN is a compact managed network switch with eight Gigabit Ethernet RJ-45 ports that support Power over Ethernet (IEEE 802.3af/at) and four SFP ports for fiber uplinks. It accepts 18–57 V DC input and provides PoE to powered devices such as IP cameras, access points and VoIP phones. Suited for small office, branch and retail network deployments.

## Long description

CRS112-8P-4S-IN is a compact managed network switch with eight Gigabit RJ-45 ports that support Power over Ethernet (802.3af/at and passive PoE) and four SFP slots for fiber uplinks up to 1 Gbps. The unit includes a 28 V 3.4 A power supply and has an additional rear DC jack that accepts 48–57 V input for alternative PoE power sourcing. PoE output is delivered over mode B (pins 4,5 + and 7,8 -).
Advantages
The switch combines eight Gigabit Ethernet ports with four SFP ports for flexible copper and fiber connectivity, and supports both autosensing 802.3af/at PoE/PoE+ and passive PoE modes. It includes a 28 V 3.4 A power adapter and offers a secondary DC input for higher-voltage supplies, enabling powering of multiple PoE devices while maintaining gigabit uplink capability.
Suitable for
 Small office or branch networks requiring PoE for IP cameras, access points, or VoIP phones
 Retail or hospitality deployments with a mix of copper and fiber uplinks
 Environments that need a compact managed switch with multiple Gigabit ports and SFP uplinks
When it may not be suitable
This model is not designed for 10 Gbps switching or very high-density enterprise core deployments. Power budget is limited: with 18–28 V input the maximum per-port current is 1 A and total PoE budget is 2.8 A at 24 V, while with 48–57 V input the per-port current is limited to 450 mA and the total is 1.4 A at 48–57 V. For installations requiring higher per-port PoE power or larger total PoE budgets, a higher-capacity switch should be considered.
Key specifications
 Ports: 8 × Gigabit RJ-45 (10/100/1000), 4 × SFP
 PoE support: autosensing IEEE 802.3af/at and passive PoE (Mode B)
 Input voltage range: 18–57 V DC (28 V 3.4 A PSU included; secondary jack supports 48–57 V)
 PoE current limits: up to 1 A per port at 18–28 V, up to 450 mA per port at 48–57 V
 Total PoE budget: 2.8 A @ 24 V, 1.4 A @ 48–57 V
 Uplink speed (SFP): up to 1 Gbps
 Color: white
 Managed switch functionality: basic managed features (VLANs, switching)
How to use
Connect powered devices to the RJ-45 ports and fiber uplinks to the SFP slots as required. Use the included 28 V 3.4 A power supply for typical deployments; if higher-voltage PoE (48–57 V) is needed, connect an appropriate external 48–57 V DC supply to the rear DC jack (sold separately). The unit will autosense and provide correct PoE type to connected devices. Configure network settings and VLANs via the switch’s management interface according to your network topology.
What to consider before purchase
 Required PoE power per device and total PoE budget of the switch
 Whether 1 Gbps SFP uplinks meet your uplink capacity needs
 Need for higher-voltage (48–57 V) external PSU for full 802.3af/at power delivery
 Not suitable if 10 Gbps switching or very high PoE budgets are required
Usage recommendations
For typical small office or retail setups, use the included 28 V adapter and distribute PoE to low-to-moderate power devices (IP cameras, APs, VoIP phones). If you need to power multiple higher-power 802.3at devices, provide a compatible 48–57 V DC supply to the secondary jack and verify total current requirements before deployment.

## Specifications

### Packaging data

| Feature | Value |
|---|---|
| AC adapter included | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85176990 |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -20 - 60 |

### Power

| Feature | Value |
|---|---|
| DC input voltage | 18 - 57 |
| Power consumption (max) | 10 W |

### Performance

| Feature | Value |
|---|---|
| Processor frequency | 400 MHz |
| Internal memory | 128 MB |
| Flash memory | 16 MB |
| Compatible operating systems | RouterOS L5 |
| Built-in processor | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| Basic switching RJ-45 Ethernet ports type | Gigabit Ethernet (10/100/1000) |
| Basic switching RJ-45 Ethernet ports quantity | 8 |
| SFP module slots quantity | 4 |
| Power connector | DC-in jack |

### Power over Ethernet (PoE)

| Feature | Value |
|---|---|
| Power over Ethernet (PoE) | Yes |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.3at, IEEE 802.3af |
| 10G support | No |

### Design

| Feature | Value |
|---|---|
| Product colour | White |

## FAQ

### How much does the MikroTik CRS112-8P-4S-IN network switch cost, and is it available for purchase?

The price is 205.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 07.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can MikroTik CRS112-8P-4S-IN network switch be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 MikroTik 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 MikroTik 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 type, basic switching rj-45 ethernet ports quantity, 10g support, product colour, 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.

### Where can I download the instructions for MikroTik CRS112-8P-4S-IN network switch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12369462/68493964_large.webp