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Two green DDR memory sticks with gold connectors

HP

HP 300682-B21 4GB (2 x 2GB) 184-Pin DDR SDRAM memory upgrade

SKU CH-BHQ0-YFENZ MPN 300682-B21

4GB DDR 266 ECC memory kit with two 2GB 184-pin modules for HP/Compaq systems

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR 266 (PC 2100)
  • Product type184-Pin DDR SDRAM
  • Compatible systemsHP/Compaq
  • 4 GB total capacity from a matched pair of 2 GB modules
  • 184-pin DDR SDRAM form factor fits supported HP/Compaq systems
  • DDR 266 (PC 2100) speed rating for compatible platform performance
  • ECC support provides error detection for data integrity
  • HP part number 300682-B21 ensures correct system-specific fit

System Specific Memory Kit

This HP 300682-B21 kit supplies four gigabytes of DDR SDRAM in two matched 2GB modules. It is built for HP and Compaq systems that require 184-pin DIMMs with ECC support.

Suited for HP/Compaq servers needing ECC DDR 266

The kit fits HP and Compaq platforms that accept PC 2100 registered memory with error correction. It is not for systems that need non-ECC modules, higher DDR speeds, or a different pin count.

DDR 266 (PC 2100) ECC rating

The memory operates at the DDR 266 standard, also labelled PC 2100, and includes ECC for data integrity. Verify that your HP or Compaq server specifies this exact speed and error-correction type before ordering.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $97.99
Cheaper than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $24.50 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameHP
Model name300682-B21
Total capacity4 GB (2 × 2 GB)
Product type184-Pin DDR SDRAM
Performance
Rated speedDDR 266 (PC 2100)
Memory
ECC supportYes
Size & build
Shipping weight0.09 kg
Package size178 × 127 × 25 mm
Compatibility
Compatible systemsHP/Compaq

Questions about this item

Should I pick the 4GB kit as two 2GB modules instead of a single 4GB stick?

This kit provides 4GB total as two matched 2GB modules, enabling dual-channel operation on supported HP/Compaq systems.

What does the DDR 266 (PC 2100) rating mean for everyday use?

The modules run at 266 MT/s with a peak bandwidth of 2100 MB/s, setting the maximum data rate the memory subsystem can sustain.

How does the 184-pin DDR interface limit upgrade options?

The 184-pin DDR SDRAM design only fits motherboards that accept that specific form factor and speed grade.

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