# StarTech LOOPBACKPLUG100G QSFP28 100G Fiber Loopback Tester

**URL:** https://aio.lv/en/product--startech-loopbackplug100g--12408042
**Data updated:** 2026-05-09 15:01 (EEST)
**Category:** Network Cables
**Manufacturer:** StarTech
**Manufacturer code:** LOOPBACKPLUG100G
**EAN:** 0065030923491
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 96.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 79.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-loopbackplug100g--12408042

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The StarTech LOOPBACKPLUG100G is a professional fiber cable tester designed for loopback testing of QSFP28 100G network interfaces. This silver-colored module is essential for verifying the functionality of high-speed network ports and transceivers. It complies with TAA, RoHS, and CE standards, ensuring reliable performance for data center and enterprise network diagnostics. It provides a precise solution for testing connectivity and signal integrity in 100G environments.

## Long description

The StarTech LOOPBACKPLUG100G is a professional fiber cable tester engineered for loopback testing of QSFP28 100G network interfaces. This compact, silver-colored module is designed to verify the functionality of high-speed network ports and transceivers, ensuring reliable performance in demanding data center and enterprise network environments. By simulating a network connection, it allows for precise diagnostics of connectivity and signal integrity within 100G infrastructure.
Advantages
This loopback tester provides a straightforward and efficient method for troubleshooting high-speed network hardware. Its robust design ensures consistent performance during testing procedures, helping to identify potential issues with transceivers or ports before they impact network operations. The module is fully compliant with TAA, RoHS, and CE standards, making it a dependable tool for professional IT technicians and network administrators who require accurate verification of 100G fiber optic links.
Suitable for
Testing QSFP28 100G network ports
Verifying transceiver functionality
Data center network diagnostics
Enterprise network troubleshooting
When it may not be suitable
This device is specifically designed for QSFP28 100G interfaces and will not function with other connector types such as SFP+ or QSFP+. It is intended for loopback testing purposes only and cannot be used to extend network cables or bridge connections between different devices.
Key specifications
Product type: Fiber cable tester
Supported connector: QSFP28
Test type: Loopback testing
Color: Silver
Weight: 0.038 kg
Dimensions: 18.8 mm x 126 mm x 13.3 mm
How to use
To use the loopback tester, simply insert the module directly into the QSFP28 port of the network equipment or transceiver you wish to test. Once connected, the device creates a closed loop, allowing the network interface to send and receive its own signals. You can then use your network management software or diagnostic tools to monitor the link status and verify signal integrity, confirming that the port or transceiver is operating correctly.
What to consider before purchase
Ensure your hardware utilizes the QSFP28 interface
Verify that your diagnostic software supports loopback testing
Check if your testing requirements are limited to 100G speeds
Usage recommendations: Always handle the fiber optic module with care to avoid damaging the connector pins. Ensure the port is clean and free of debris before insertion to maintain optimal signal quality during testing.

## Specifications

| Feature | Value |
|---|---|
| Housing material | Plastic, Metal |
| Built-in display | No |
| Test type | Loopback testing |
| Supported connectors | QSFP28 |

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |
| Networking standards | IEEE 802.3ba |
| Connector gender | Male |

### Other features

| Feature | Value |
|---|---|
| Product type | Fiber cable tester |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.038 kg |
| Height | 13.3 mm |
| Width | 18.8 mm |
| Depth | 126 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 75 |
| Operating temperature (T-T) | -40 - 75 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 46 g |
| Package depth | 20 mm |
| Package height | 15 mm |
| Package width | 95 mm |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 400 mm |
| Master (outer) case width | 430 mm |
| Master (outer) case length | 335 mm |
| Products per master (outer) case | 1000 pc(s) |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | Trade Agreements Act (TAA), RoHS, CE |

## FAQ

### How much does the StarTech LOOPBACKPLUG100G QSFP28 100G Fiber Cable Tester cost, and is it available for purchase?

The price is 96.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 26.06.2026 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 StarTech 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 StarTech 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: weight, product colour, 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/12408042/68700377_large.webp