Skip to main content
parts-quick 4GB (2x2) 667MHz DDR2 RAM module โ€” 4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP Workstation XW8600 (PARTS-QUICK BRAND). Equivalent to HP Part Numbers: 397413-B21, 442823-B21, 461828-B21, EM161AA (2pcs)

parts-quick

4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP Workstation XW8600 (PARTS-QUICK BRAND). Equivalent to HP Part Numbers: 397413-B21, 442823-B21, 461828-B21, EM161AA (2pcs)

In Stock
DDR24GB (2x2)667MHzDIMMECC
4.6(8 reviews)

Available Styles / Variations:

A
Chief Analyst Verdict

Enterprise ECC Stability

Validated by C.R. Vinoth Kumar ยท Founder & Senior Editor

This is an Error Correcting Code (ECC) server module designed to prevent silent data corruption in 24/7 server environments (like TrueNAS/ZFS or enterprise workloads). Ensure your motherboard and CPU officially support ECC before purchasing.

Current price

$29.99$7.50/GB

As of Jul 14, 2026 ยท Verify on Amazon ยท Price subject to change

$/GB vs DDR2 market avg

40% below avg
This product$7.50/GB
$7.50
DDR2 market avg$12.56/GB
$12.56

Deal score

91/100

At $7.50/GB โ€” 40% below the DDR2 market average.

Buy on AmazonLoad alerts

Also sold elsewhere

Prices on this page are Amazon.com prices from our Creators API refresh (as of the last update). You can look up this kit (ASIN: B0075NKBUE) on other retailers such as Newegg or Crucial โ€” we do not display their prices here. Always verify the checkout price on Amazon before purchasing.

Verified in stock

Product prices and availability are accurate as of the date of the last daily update and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.

At a Glance

Strengths

  • 40% below the overall DDR2 market average $/GB

Limitations

  • Limited review data โ€” only 8 Amazon reviews
  • Limited price history โ€” recently added to tracking, trends not yet available
  • Requires ECC-compatible CPU and motherboard โ€” not supported on most consumer platforms

All points are derived from price data, customer ratings, and product specifications โ€” not editorial opinion. Updated daily.

Is This RAM Right for You?

Based on 4GB (2x2) DDR2 ECC DIMM specifications.

Gamingโœ• Not suited

ECC RAM is not supported on gaming platforms (consumer CPUs/boards)

Office / Schoolโœ• Not suited

ECC RAM requires server-grade hardware โ€” not compatible with standard office PCs

Content Creationโœ“ Ideal

ECC RAM protects long renders from silent data corruption โ€” ideal for professional workstations

Server / NASโœ“ Ideal

ECC RAM detects and corrects memory errors โ€” required for data-critical servers and ZFS storage

Laptop Upgradeโœ• Not suited

This is a desktop DIMM โ€” laptop upgrades require SO-DIMM modules. See Laptop RAM Prices for compatible options.

Verdicts based on capacity, form factor, and ECC specifications โ€” not editorial opinion. Capacity recommendations reflect 2026 software requirements.

Price History

Updated daily โ€” track price trends over time

Current

$29.99

57d Low

$29.99

57d High

$29.99

57d Avg

$29.99

Speed Ranking

Top 42%

667MHz ranks in the top 42% of all DDR2 speeds tracked (29 modules).

SlowestFastest

About parts-quick

4.6โ˜…

avg rating

7

products tracked

Z-Score Deviation

B

Fair / Average Price

Deviation: -1.00ฯƒ

This product is currently priced within normal historical margins.

Avg: $29.99StdDev: ยฑ$0.00

Specifications

Memory TypeDDR generation (DDR4 vs DDR5) ยท guide
DDR2
CapacityTotal kit memory size ยท guide
4GB (2x2)
Kit Configโœ“ 2ร— kit โ€” dual-channel ready
SpeedFrequency in MT/s or MHz ยท guide
667MHz
Form FactorDIMM (Desktop) vs SO-DIMM (Laptop)
DIMM
ECCError-correcting capability ยท guide
Yes
ASIN
B0075NKBUE

Spotted a wrong price or spec? Report a data correction ยท How we verify data

DDR2 Price by Capacity

Average $/GB across all DDR2 modules in the database

CapacityAvg $/GB
4GBThis product$8.18/GB
8GB$6.13/GB

Also available from parts-quick

Same brand, different configurations

parts-quick

parts-quick 2GB Kit 2 X 1GB DDR2 Memory for Dell Inspiron 518 519 531 531s 545 545s 546 546s Desktop PC2-5300 240 pin 667MHz DIMM RAM

DDR22GB (2x1)667MHz

parts-quick

8GB (2 X 4GB) DDR2 PC2-5300F 667MHz CL5 ECC Memory Server Motherboard FB DIMM (PARTS-QUICK Brand)

DDR28GB (2x4)667MHz

Frequently Asked Questions

Is the parts-quick 4GB (2x2) 667MHz DDR2 compatible with my motherboard?

Compatibility depends on your motherboard's supported memory type (DDR2), speed, and capacity. Check your motherboard manufacturer's QVL list to confirm this module is validated for your specific board.

Is this DDR2 module a good deal right now?

At $7.50/GB, this module is 40% below the overall DDR2 market average $/GB across all capacities. Deal score: 91/100. Check the price history chart above to see how the price has moved recently. Prices are updated daily from Amazon.

What is 667MHz RAM used for?

This is an ECC (Error-Correcting Code) RAM module designed for servers, workstations, and NAS systems where data integrity is critical. ECC RAM detects and corrects single-bit memory errors automatically. It requires a compatible CPU and motherboard โ€” most consumer platforms do not support ECC. See our ECC RAM guide for platform compatibility details.

How does parts-quick RAM compare to other brands?

parts-quick has 7 modules tracked with an average customer rating of 4.6โ˜…. This specific module is 40% below the overall DDR2 market average $/GB. Browse all parts-quick modules or use the comparison tool to see how it stacks up against Corsair, G.Skill, Kingston, and Crucial.

Is 16GB of RAM enough for gaming in 2026?

4GB is below the 16GB minimum recommended for gaming in 2026. Most modern AAA titles require 12โ€“16GB. Consider upgrading to at least 16GB for a smooth gaming experience.

What is the difference between a single 4GB stick and a 2ร—2GB kit?

This is already a 2ร—2GB dual-channel kit โ€” the correct configuration for maximum performance. Dual-channel mode doubles the memory bandwidth by using both memory channels simultaneously, improving performance in games and applications by 10โ€“30% compared to a single stick of the same total capacity.

Similar DDR2 RAM

Rasalas

Rasalas DDR2 800 PC2-6400 DDR2 4GB Kit (2x2GB) DDR2-800 Udimm Ram Desktop PC2-6400U 2RX8 1.8V CL6 240 Pin Non-ECC Unbuffered Desktop RAM Memory Modules

DDR24GB (2x2)

NANYA

NANYA NT2GT64U8HD0BY-AD 4GB 2 x 2GB PC2-6400U DDR2 800 NonECC Desktop Memory Kit

DDR24GB (2x2)

SK Hynix

4GB 2X2GB RAM PC2-6400U 800MHZ 2RX8 DDR2 NON-ECC Unbuffered For DESKTOP Memory

DDR24GB (2x2)800MHz

A-Tech

A-Tech 4GB (2x2GB) DDR2 1066MHz / 1067MHz DIMM PC2-8500 UDIMM Non-ECC 1.8V CL7 240-Pin Desktop Computer RAM Memory Upgrade Kit

DDR24GB (2x2)1066MHz
VK

Expertly Curated by C.R. Vinoth Kumar

Lead Hardware Analyst

C.R. Vinoth Kumar is a senior systems systems engineer and memory hardware architect with over 12 years of experience benchmarking computer components, building performance virtualization servers, and assembling local LLM inference rigs. Every memory module tracked in our database is mathematically checked using custom telemetry to isolate nanosecond CAS latency bounds, price-per-gigabyte market averages, and Ryzen/Intel platform pairings.

$29.99$7.50/GB
Buy on Amazon

As an Amazon Associate I earn from qualifying purchases. Prices updated daily. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.