---
product_id: 151340636
title: "Brainboxes ES-257 2 Port EThernet to Serial Adapter"
brand: "brainboxes"
price: "S$16"
currency: SGD
in_stock: true
category: "product"
url: https://www.desertcart.sg/products/151340636-brainboxes-es-257-2-port-ethernet-to-serial-adapter
store_origin: SG
region: Singapore
---

# Brainboxes ES-257 2 Port EThernet to Serial Adapter

**Brand:** brainboxes
**Price:** S$16
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Brainboxes ES-257 2 Port EThernet to Serial Adapter by brainboxes
- **How much does it cost?** S$16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/151340636-brainboxes-es-257-2-port-ethernet-to-serial-adapter)

## Best For

- brainboxes enthusiasts

## Why This Product

- Trusted brainboxes brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Description                                                            Brainboxes ES-257 2 Port Ethernet to Serial Adapter card offers a simple, instant cable replacement providing network integration.                                                                                                                                                                                    Interface: Ethernet                                                                                                                                                            Data transfer rate: Up to 10/100 Mbps                                                                                                                                                            Number of ports: 2                                                                                                                                                            Operating systems: Windows® 7 (32-/64-bit), Vista (32-/64-bit), XP (32-/64-bit), Server 2003 & 2008 (32-/64-bit), Server 2008                                                                                                                                                            Ethernet technology: Fast Ethernet                                                                                                                                                            Network standard: 10/100Base-TX                                                                                                                                                            Connector type: 9 pin male (DB-9)                                                                                                                                                            Operating Temperature: 0 to 55 deg C                                                                                                                                                            Dimensions: 1.10"(H) x 49"(W) x 42"(L)                                                                                                                                                                                                 Specifications                                                           Brand : Brainboxes                             Customizable : No                                                                                                                                     Weight : 1.00 lbs. per Each

## Images

![Brainboxes ES-257 2 Port EThernet to Serial Adapter - Image 1](https://www.quill.com/is/image/Quill/s0683699_s7?$img400$)

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**Shop now:** [https://www.desertcart.sg/products/151340636-brainboxes-es-257-2-port-ethernet-to-serial-adapter](https://www.desertcart.sg/products/151340636-brainboxes-es-257-2-port-ethernet-to-serial-adapter)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-07*