# Protective bend relief sleeve, Hirose TM21, red — EFB-Elektronik Knickschutztülle 37641.6

**URL:** https://aio.lv/en/product--hirose-376416--11439020
**Data updated:** 2026-06-05 19:00 (EEST)
**Category:** Network Equipment Accessories
**Manufacturer:** Hirose
**Manufacturer code:** 37641.6
**EAN:** 4049759137090
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hirose-376416--11439020

## 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 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Red bend-relief sleeve EFB-Elektronik Knickschutztülle for Hirose TM21 connectors, model 37641.6. Designed to protect cable exits and connector backshells from kinking and mechanical strain, it maintains reliable signal and power connections. Suitable for network and industrial cable assemblies where space-saving, strain relief and improved cable longevity are required.

## Long description

The EFB-Elektronik protective bend relief sleeve is a specialized accessory designed specifically for Hirose TM21 connectors. This red sleeve provides essential protection for cable exits and connector backshells, effectively preventing kinking and reducing mechanical strain on the connection point. By maintaining the integrity of the cable assembly, it ensures consistent signal and power transmission in demanding network environments.
Advantages
This bend relief sleeve significantly enhances the durability of your network cabling by distributing mechanical stress away from the connector termination. Its robust design prevents sharp bends that can lead to internal wire damage or signal degradation over time. The vibrant red color also allows for easy visual identification and cable management within complex server racks or industrial installations, helping to organize connections efficiently.
Suitable for
Network cable assemblies using Hirose TM21 connectors
Industrial Ethernet installations requiring high durability
Data center cable management systems
Environments where cables are subject to frequent movement or vibration
This product may not be suitable for connectors other than the Hirose TM21 series, as the dimensions are precision-engineered for this specific model. It is also not intended for use in extreme outdoor environments without additional protective housing or for cables with diameters that exceed the internal clearance of the sleeve.
Key specifications
Compatibility: Hirose TM21 connectors
Color: Red
Function: Strain relief and kink protection
Material: Flexible, durable polymer
To install the sleeve, slide it onto the cable before crimping the connector onto the wire ends. Once the connector is attached, push the sleeve forward until it securely covers the back of the connector housing. Ensure that the sleeve is fully seated to provide maximum strain relief and protection against bending.
What to consider before purchase
Verify that your connector model is compatible with the Hirose TM21 standard
Check the cable diameter to ensure it fits within the sleeve opening
Consider color-coding requirements for your network infrastructure
For optimal performance and longevity, ensure the cable is not pulled tight against the sleeve, as this can negate the strain relief benefits. Regularly inspect the sleeve for signs of wear or cracking in high-traffic areas.

## FAQ

### How much does the Bend-relief sleeve Hirose TM21 red cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1000 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 Hirose 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 Hirose 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

## Image

https://aio.lv/img/cache/product/11439020/66079069_large.webp