# StarTech LOOPBACKMTPSM9125M Single Mode MPO/MTP Fiber Cable Loopback Tester

**URL:** https://aio.lv/en/product--startech-loopbackmtpsm9125m--12474487
**Data updated:** 2026-05-18 09:31 (EEST)
**Category:** Network Cables
**Manufacturer:** StarTech
**Manufacturer code:** LOOPBACKMTPSM9125M
**EAN:** 0065030922678
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 83.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 69.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-loopbackmtpsm9125m--12474487

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

The StarTech LOOPBACKMTPSM9125M is a professional single-mode fiber cable tester designed for MPO/MTP connectors. Utilizing loopback testing, this device is essential for verifying the functionality of fiber optic network links and transceivers. It features a compact design, TAA, CE, and RoHS compliance, ensuring reliable performance for network diagnostics and maintenance in various professional IT environments.

## Long description

The StarTech LOOPBACKMTPSM9125M is a professional-grade single-mode fiber cable tester engineered for precise diagnostics of MPO/MTP network interfaces. This compact device facilitates efficient loopback testing, allowing network administrators to verify the integrity of fiber optic links and the operational status of transceivers. By routing the signal back into the port, it provides a reliable method for troubleshooting connectivity issues and ensuring optimal performance in high-density fiber environments.
Advantages
This loopback tester offers a streamlined solution for network maintenance by enabling rapid verification of hardware without the need for complex external equipment. Its robust construction and adherence to international standards ensure consistent results during diagnostic procedures. The lightweight and portable design makes it an ideal tool for field technicians and IT professionals who require a dependable way to test MPO/MTP connections on the go. Furthermore, its compliance with TAA, CE, and RoHS regulations guarantees that it meets rigorous quality and safety requirements for professional use.
Suitable for
Verifying MPO/MTP transceiver functionality
Testing fiber optic network links
Network troubleshooting and diagnostics
Data center maintenance
This device is not suitable for testing multi-mode fiber optic cables, as it is specifically designed for single-mode applications. It should not be used for signal measurement or power monitoring, as its primary function is limited to loopback testing for connectivity verification.
Key specifications
Product type: Fiber cable tester
Connector type: MPO/MTP
Fiber mode: Single-mode
Dimensions: 20.1 mm x 65 mm x 9.3 mm
Compliance: TAA, CE, RoHS
How to use
To use the loopback tester, simply insert the MPO/MTP connector into the corresponding port on your network hardware or transceiver. Once connected, the device creates a closed-loop signal path, allowing the network equipment to transmit and receive its own signal. You can then monitor the link status through your network management software or hardware interface to confirm that the connection is active and error-free.
What to consider before purchase
Ensure your network equipment utilizes MPO/MTP interfaces
Verify that your infrastructure requires single-mode fiber testing
Confirm compatibility with your specific transceiver modules
Usage recommendations: Always inspect the fiber connector faces for dust or debris before insertion to prevent signal loss or damage to the equipment ports.

## Specifications

| Feature | Value |
|---|---|
| Housing material | Acrylonitrile butadiene styrene (ABS) |
| Fiber mode structure | Single-mode |
| Built-in display | No |
| Test type | Loopback testing |
| Supported connectors | MPO/MTP |
| Fibre optic type | OS1/OS2 |

### Features

| Feature | Value |
|---|---|
| Product colour | Green, Black |
| Connector gender | Male |

### Other features

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.004 kg |
| Height | 9.3 mm |
| Width | 20.1 mm |
| Depth | 65 mm |

### Operational conditions

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

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 7 g |
| Package depth | 90 mm |
| Package height | 5 mm |
| Package width | 120 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), CE, RoHS |

## FAQ

### How much does the StarTech LOOPBACKMTPSM9125M Fiber Cable Tester cost, and is it available for purchase?

The price is 83.99 € (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 25.06.2026 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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/12474487/68793272_large.webp