---
product_id: 5353619
title: "PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400"
brand: "pny"
price: "$43.50"
currency: USD
in_stock: true
reviews_count: 8
category: "Pny"
url: https://www.desertcart.us/products/5353619-pny-optima-512mb-ddr-400-mhz-pc3200-desktop-dimm-memory
store_origin: US
region: United States of America
---

# 400 MHz high-speed bus 512MB DDR400 memory capacity 3200MB/s data transfer rate PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400

**Brand:** pny
**Price:** $43.50
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your desktop’s heartbeat with PNY Optima DDR400 – speed that keeps you ahead!

## Quick Answers

- **What is this?** PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400 by pny
- **How much does it cost?** $43.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/5353619-pny-optima-512mb-ddr-400-mhz-pc3200-desktop-dimm-memory)

## Best For

- pny enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Upgrade:** Easy installation with instant recognition—no tech headaches, just pure performance.
- • **Peace of Mind Warranty:** Lifetime warranty plus 24/7 expert support keeps your upgrade worry-free.
- • **Seamless Compatibility:** Works effortlessly with PC3200, PC2700, and PC2100 systems—future-proof your setup.
- • **Vista-Ready Performance:** Prepare your desktop for Windows Vista and beyond with reliable, responsive memory.
- • **Turbocharge Your Legacy PC:** Unlock smoother multitasking and faster app launches with a 400 MHz DDR400 boost.

## Overview

The PNY Optima 512MB DDR400 (PC3200) Desktop DIMM is a lightweight, high-speed memory module delivering a 400 MHz bus speed and up to 3200MB/s data transfer rate. Compatible with multiple PC memory standards, it enhances system responsiveness and prepares desktops for Windows Vista. Backed by lifetime warranty and 24-hour technical support, it’s a reliable upgrade for professionals seeking efficient, hassle-free performance boosts.

## Description

Boost the performance of your PC to its maximum with this PNY 512MB DDR400 (PC3200) Memory Upgrade. It will give you up to a 3200MBs data transfer rate and a 400MHz bus.

Review: Excellent RAM; great price - I have an old but extremely functional Dell Dimension 4550 that now has new life. After upgrading the BIOS to AO8 I ordered the PNY Optima 2GB (2x1GB) modules from desertcart which I received in a few business days. desertcart's new easy packaging initiative is a welcome process. The box was just the right size, afforded proper protection and was easy to open. Insertion of the RAM into my PC was quick and very straightforward. After closing the case I powered up the system and the RAM was instantly recognized and performed flawlessly. System Info and Belarc Advisor both testified to the full 2048kb of RAM. The newest version of Turbo Tax, which somewhat overwhelmed the previous 1GB (2x512MB) modules, now performs smoothly with the additional RAM. My only complaint is the vendor packaging. The RAM is well protected but, as with most electronics these days, the only way to open the plastic is to cut it open with scissors or utility knife. In addition to the added difficulty, the possibility of damaging the RAM while cutting it open creates considerable angst. All in all however, the PNY RAM filled the bill. Highly recommended.
Review: EXCELLENT PRODUCT FOR THE PRICE.. - EXCELLENT PRODUCT FOR THE PRICE....work great....10 stars for these guys

## Features

- Memory capacity upgrade provides improved system performance and responsiveness
- Deliver all the productivity your PC has to offer with PNY Memory
- Compatible with PC3200 (400 MHz), PC2700 (333 MHz), and PC2100 (266 MHz) systems
- Helps prepare your PC for running Windows Vista
- Easy installation, Free 24-hour Technical Support, and Lifetime Warranty!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000B006W |
| Additional Features | Lightweight |
| Best Sellers Rank | #21,252 in Computer Memory |
| Brand | PNY |
| Compatible Devices | Desktop |
| Computer Memory Size | 0.5 GB |
| Customer Reviews | 4.6 out of 5 stars 957 Reviews |
| Data Transfer Rate | 512 Megabits Per Second |
| Form Factor | Desktop |
| Global Trade Identification Number | 07514922265070 |
| Item Height | 1 inches |
| Item Weight | 0.05 Pounds |
| Manufacturer | PNY |
| Memory Speed | 400 MHz |
| Model Name | Optima |
| Number of Pins | 184 |
| RAM Memory Technology | DDR4 |
| RAM Size | 0.5 GB |
| Special Feature | Lightweight |
| UPC | 751492226507 |
| Unit Count | 1.0 Count |
| Voltage | 2.5 Volts |

## Product Details

- **Brand:** PNY
- **Computer Memory Size:** 1 GB
- **RAM Memory Technology:** DDR4
- **Memory Speed:** 400 MHz
- **Compatible Devices:** Desktop

## Images

![PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400 - Image 1](https://m.media-amazon.com/images/I/714sqWUYw+L.jpg)
![PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400 - Image 2](https://m.media-amazon.com/images/I/71nsggM625L.jpg)
![PNY Optima 512MB DDR 400 MHz PC3200 Desktop DIMM Memory Module MD0512SD1-400 - Image 3](https://m.media-amazon.com/images/I/81hVrQZkLyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent RAM; great price
*by T***N on March 29, 2011*

I have an old but extremely functional Dell Dimension 4550 that now has new life. After upgrading the BIOS to AO8 I ordered the PNY Optima 2GB (2x1GB) modules from Amazon which I received in a few business days. Amazon's new easy packaging initiative is a welcome process. The box was just the right size, afforded proper protection and was easy to open. Insertion of the RAM into my PC was quick and very straightforward. After closing the case I powered up the system and the RAM was instantly recognized and performed flawlessly. System Info and Belarc Advisor both testified to the full 2048kb of RAM. The newest version of Turbo Tax, which somewhat overwhelmed the previous 1GB (2x512MB) modules, now performs smoothly with the additional RAM. My only complaint is the vendor packaging. The RAM is well protected but, as with most electronics these days, the only way to open the plastic is to cut it open with scissors or utility knife. In addition to the added difficulty, the possibility of damaging the RAM while cutting it open creates considerable angst. All in all however, the PNY RAM filled the bill. Highly recommended.

### ⭐⭐⭐⭐⭐ EXCELLENT PRODUCT FOR THE PRICE..
*by G***Y on August 5, 2025*

EXCELLENT PRODUCT FOR THE PRICE....work great....10 stars for these guys

### ⭐⭐⭐⭐ Solid Quality
*by M***R on April 22, 2010*

I bought this two pack to upgrade from the two over-clocked 256 sticks that I had in my computer. I just plugged these into the other two slots I had available and the auto detection program did the rest. I am now running 3G of RAM. It has certainly made a difference for running multiple programs and seems to have made web browsing a bit faster as well. I have an Asus A8N-SLI Deluxe motherboard and these plugged right in. This is a great buy for upgrading your older computer or building up your new one.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-18*