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header-product Managed Switch LevelOne KILBY 28-Port Stackable L3
1,395.49 €

Managed Switch LevelOne KILBY 28-Port Stackable L3

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Short description

The LevelOne KILBY 28-Port Stackable L3 Managed Gigabit Switch features 24 Gigabit Ethernet ports, 2 x 10GbE SFP+ ports, and 1 x 10GbE module slot. With a switching capacity of 128 Gbit/s and a MAC address table of 16,000 entries, it supports various networking standards including IEEE 802.1D and IEEE 802.1Q. Ideal for high-performance networking environments, it offers full duplex communication and rack mounting capabilities.
Available at price 1,395.49 €: 3 pcs.
Total available for order: 14 pcs.
Warranty: 2 Years
SKU: 430222
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
26.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
29.10.2026 {{selectedOffer.courierDeliveryString}}
From 5.20 € (Weight: 5.30 kg)
Parcel couriers
Unisend LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
29.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities
36 months installment: from 38.76 euros per month
Leasing for legal entities: from 48.56 euros per month
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Product information

Description

The GTL-2891 is a family of high-performance Gigabit Ethernet Layer 3 switches with 28 ports: 24 10/100/1000BASE-T ports, 2 10G SFP+ ports, and one 10G dual-port expansion slot. These switches are designed for server aggregation in enterprise data centers, backbone upgrades, and providing Gigabit-to-the-desktop connections for power users, supporting fiber and copper connectivity while delivering continuous availability and simple management.

Advantages

The GTL-2891 series offers a combination of high port density and 10G uplink options, making it suitable for connecting high-end servers and network-attached storage. Layer 3 capabilities and advanced QoS improve traffic management, while built-in security features increase edge protection. The devices balance performance and cost-effectiveness for enterprise deployments and are intended to simplify network operations with centralized management support.

Key specifications

  • Ports: 24 x 10/100/1000BASE-T
  • Uplink ports: 2 x 10G SFP+
  • Expansion: 1 x 10G dual-port expansion slot
  • Switching: Gigabit Ethernet, Layer 3 routing capabilities
  • Typical use cases: server aggregation, data center access, backbone upgrade

How to use

Install the GTL-2891 in a standard rack and connect server or storage devices to the 1G copper ports and high-performance uplinks to the 10G SFP+ ports or the 10G expansion slot. Configure Layer 3 routing, VLANs, QoS, and security policies according to network design using the device management interface. Use the 10G interfaces for aggregation to core switches or for connecting high-bandwidth servers over fiber.

Recommendations

For optimal performance, connect high-throughput servers and NAS devices to the 10G SFP+ ports or the 10G expansion slot and reserve the 1G ports for desktops and less demanding equipment. Keep firmware updated and configure QoS and security features to match your traffic and access requirements.

Specifications

Power over Ethernet (PoE): The device supports Power over Ethernet (PoE), which is one of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.
No
Stackable: Devices can be placed on top of each other.
Yes
Rack mounting: The type of mounting that can position devices in a shelving system (rack).
Yes
Switching capacity: The data transfer capacity of the switch per second.
128 Gbit/s
MAC address table: The MAC address is the 'Media Access Control Address'. It is a unique address given to a network interface controller (NIC) in a device. A MAC address table shows the addresses in a table format.
16000 entries
10G support: The product can use Oracle 10G, which is a database management system introduced in 2003.
Yes
Basic switching RJ-45 Ethernet ports type: The type/category of basic switching RJ-45 Ethernet ports (sockets).
Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity: The number of basic switching RJ-45 Ethernet ports (sockets).
24
Switch type: What switch device has, managed or unmanaged.
Managed
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1w, IEEE 802.3x, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ag, IEEE 802.1p, IEEE 802.1s, IEEE 802.1x, IEEE 802.3ad, IEEE 802.3ah, IEEE 802.3u, IEEE 802.3z
All features

Logistics data

Products per master (outer) case:
1 pc(s)
Master (outer) case gross weight:
5300 g
Master (outer) case height:
133 mm
Harmonized System (HS) code:
85176990
Master (outer) case length:
390 mm
Master (outer) case width:
590 mm
Country of origin: Country where the device is made. Aka Country of manufacture (COM).
China

Certificates

Certification:
FCC, CE, VCCI Class A, WEEE, RoHS

Packaging data

Package weight: Weight of the packaged product.
5300 g
Package height: The distance from the top to the bottom of the packaging.
133 mm
Package depth: The distance from the front to the back of the packaging.
390 mm
Package width: The distance from one side of the packaging to the other.
590 mm
Package type: The type of product package e.g. box.
Box
Rubber feet:
Yes
Resource CD:
Yes

Packaging content

Rack mount kit:
Yes
Quick start guide: Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.
Yes
Cables included:
AC, LAN (RJ-45)

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
3.7 kg
Height: The measurement of the product from head to foot or from base to top.
44 mm
Depth: The distance from the front to the back of something.
315 mm
Width: The measurement or extent of something from side to side.
440 mm

Operational conditions

Storage relative humidity (H-H):
10 - 90
Operating relative humidity (H-H):
10 - 90
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 70
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 45

Power over Ethernet (PoE)

Power over Ethernet (PoE): The device supports Power over Ethernet (PoE), which is one of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.
No

Power

Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
35 W
Output current:
1.5 A
AC input frequency:
50 - 60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240

Performance

Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
904213 h
Firmware upgradeable:
Yes
Telnet:
Yes
sFlow:
Yes
Flash memory:
128 MB
Internal memory: The amount of memory, usually measured in bytes (e.g. MB, GB), which is installed in the system's hardware.
256 MB
Physical stacking (units):
8

Design

Safety: List of regulatory safety standards for all countries in which this product has been certified.
UL 60950-1 & CSA 60950-1, CB IEC 60950-1 & EN 60950-1, UL/CUL
LED indicators:
Y
Product colour: The colour e.g. red, blue, green, black, white.
Grey
Stackable: Devices can be placed on top of each other.
Yes
Rack mounting: The type of mounting that can position devices in a shelving system (rack).
Yes

Protocols

Supported network protocols: Network protocols tested as compatible with this product e.g. FTP,HTML, POP.
IPv4/IPv6
GARP VLAN Registration Protocol (GVRP):
Yes
Management protocols:
CLI/WEB, Telnet/SNMP v1/v2/v3, RMON I,BOOTP/DHCP, SNTP, DNS,

Security

Static port security:
Yes
SSH/SSL support:
Yes
DoS attack prevention:
Yes
BPDU filtering/protection:
Yes
Authentication:
Web-based authentication, MAC-based authentication
IGMP snooping:
Yes
Access Control List (ACL):
Yes
DHCP features:
DHCP snooping, DHCP relay

Data transmission

Packet buffer memory:
1.5 MB
Static route:
Yes
Store-and-forward:
Yes
Forwarding rate:
95.23 Mpps
Switching capacity: The data transfer capacity of the switch per second.
128 Gbit/s
MAC address table: The MAC address is the 'Media Access Control Address'. It is a unique address given to a network interface controller (NIC) in a device. A MAC address table shows the addresses in a table format.
16000 entries

Network

Virtual LAN features:
IP subnet–based VLAN, Port-based VLAN, MAC address-based VLAN, Private VLAN, Voice VLAN, Protocol-based VLAN
VLAN support: A Virtual Local Area Network (VLAN) consists of a group of computers and switches that can be physically distributed over different networks and buildings, but form one LAN on a logical level.
Yes
Link aggregation:
Yes
Spanning tree protocol:
Yes
Full duplex: A full-duplex system allows communication in both directions, and unlike half-duplex, allows this to happen simultaneously.
Yes
10G support: The product can use Oracle 10G, which is a database management system introduced in 2003.
Yes
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1w, IEEE 802.3x, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ag, IEEE 802.1p, IEEE 802.1s, IEEE 802.1x, IEEE 802.3ad, IEEE 802.3ah, IEEE 802.3u, IEEE 802.3z

Ports & interfaces

Console port:
RJ-45
SFP+ module slots quantity:
2
Basic switching RJ-45 Ethernet ports type: The type/category of basic switching RJ-45 Ethernet ports (sockets).
Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity: The number of basic switching RJ-45 Ethernet ports (sockets).
24

Management features

Traffic classification:
Yes
ARP inspection:
Yes
Quality of Service (QoS) support:
Yes
Switch layer: A network switch is a computer networking device that links networking segments. A switch has different layers, such as layer 2 (a network bridge, operating at the data link layer, interconnecting a small number of devices) and layer 4 (can act as a firewall, amongst other things).
L3
Switch type: What switch device has, managed or unmanaged.
Managed

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Product comparison

This product page is dedicated to the Managed Switch LevelOne KILBY 28-Port Stackable L3, which is compared against five similar managed switches from the same manufacturer: Managed Switch LevelOne KILBY 28-Port L3 Lite, Managed Switch LevelOne KILBY 28-Port L3 Lite (alternate port layout), Managed Switch LevelOne 26-Port Stackable L3, Managed Switch LevelOne KILBY 26-Port L2, and Managed Switch LevelOne KILBY 10-Port L2 Gigabit 8xRJ-45 2xSFP. All these products share the managed network device class with rack-mounting capabilities and a total lack of PoE support. The primary differences lie in the routing tier (L3 versus L2), switching capacity, port counts and types (including 10GbE SFP+ slots and stacking support).

⚙️ The table below compares key device characteristics: management type and L3/L2 tier, switching capacity, MAC address table size, stacking support, and the configuration of physical and high-speed interfaces to help understand the performance of each model.

ParameterManaged Switch LevelOne KILBY 28-Port Stackable L3Managed Switch LevelOne KILBY 28-Port L3 LiteManaged Switch LevelOne KILBY 28-Port L3 LiteManaged Switch LevelOne 26-Port Stackable L3Managed Switch LevelOne KILBY 26-Port L2Managed Switch LevelOne KILBY 10-Port L2 Gigabit 8xRJ-45 2xSFPPractical conclusion
Switch tierManaged L3Managed L3 LiteManaged L3 LiteManaged L3Managed L2Managed L2The main product offers advanced Layer 3 routing capabilities compared to simpler Layer 2 alternatives.
Switching capacity128 Gbit/s128 Gbit/s128 Gbit/s128 Gbit/s88 Gbit/s20 Gbit/sMost higher-end models share an identical high performance of 128 Gbps, whereas entry solutions target lighter workloads.
MAC address table16000 entries16000 entries16000 entries16000 entries16000 entries8000 entriesNearly all devices support up to 16,000 MAC addresses, ensuring scalability in medium-sized networks.
StackableYesYesYesYesNoNoThe stacking capability of the parent product allows combining switches into a single logical system, unlike basic L2 options.
RJ-45 ports (Gigabit)24Combo ports0 (optical)24248The parent product provides standard 24 copper Gigabit ports for connecting end devices.
10G supportYesYesYesYesYesNoAlmost all reviewed models feature high-speed 10GbE SFP+ interfaces, except for the basic 10-port version.

◎ The table below evaluates various use cases and buyer needs to help select the most suitable switch model.

Use caseRecommended productWhy
Building a high-performance network core with stacking and full L3Managed Switch LevelOne KILBY 28-Port Stackable L3Ideally suited for environments requiring maximum throughput, advanced L3 routing, and combining multiple units into a stack.
Organizing a network focusing on optical connections and L3 LiteManaged Switch LevelOne KILBY 28-Port L3 LiteThe best choice if you need a balance between L3 functionality and flexible combo or optical interfaces.
Compact local networks with lower bandwidth requirementsManaged Switch LevelOne KILBY 10-Port L2 Gigabit 8xRJ-45 2xSFPSuitable for small offices or distributed nodes where high port density and 10G support are not required.

Choose the Managed Switch LevelOne KILBY 28-Port Stackable L3 if you need a powerful L3-tier switch with stacking support, 24 Gigabit ports, and high-speed 10GbE uplinks for demanding enterprise environments. Alternative models are better suited if you require basic L2 features, fewer ports, or a different optical interface configuration.

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Stock data
Warehouse Stock Delivery to the store Store Price
EU3 3 26.10.2026 Best delivery
1,395.49 € Best price
WH320 3 26.10.2026 Best delivery
1,497.99 €
WH357 3 26.10.2026 Best delivery
1,511.99 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU4 2 09.11.2026
1,395.49 €
WH109 3 09.11.2026
1,466.99 €
1,395.49 €
Stock: 3
Delivery Date: 26.10.2026 Best delivery
Warehouse: EU3
1,497.99 €
Stock: 3
Delivery Date: 26.10.2026 Best delivery
Warehouse: WH320
1,511.99 €
Stock: 3
Delivery Date: 26.10.2026 Best delivery
Warehouse: WH357
Available only for legal entities
1,395.49 €
Stock: 2
Delivery Date: 09.11.2026
Warehouse: EU4
1,466.99 €
Stock: 3
Delivery Date: 09.11.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Managed Switch LevelOne KILBY 28-Port Stackable L3 cost, and is it available for purchase?

The price is 1,395.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 26.10.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can Managed Switch LevelOne KILBY 28-Port Stackable L3 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Managed Switch LevelOne KILBY 28-Port Stackable L3 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 LEVELONE 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 LEVELONE 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: power over ethernet (poe), stackable, rack mounting, switching capacity, mac address table, 10g support, basic switching rj-45 ethernet ports type, basic switching rj-45 ethernet ports quantity, switch type, 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 Managed Switch LevelOne KILBY 28-Port Stackable L3?

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.
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