HP logo MPN: 128278-B21

HP 256MB SDRAM 133MHz memory module 0.25 GB 1 x 0.25 GB 168-pin DIMM ECC

Memory
Released: Not on record
$158.88
from US · Amazon.com · Updated 2 months ago Last updated Sep 3, 2026 03:13 UTC · Price sourced from Amazon.com (United States).
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ECC support
Y
Voltage
3.3 V
Capacity
0.25 GB
Memory clock
133 MHz
Form factor
168-pin DIMM
Buffered/registered memory
Registered (buffered)
Memory configuration
1 x 0.25
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Overview

The HP 256MB SDRAM 133MHz memory module 0.25 GB 1 x 0.25 GB 168-pin DIMM ECC features 0.25 GB of memory. Full verified specifications are listed below.

Hardware Compatibility

Hardware Quest Open-DB

Physical clearance, socket pinout, and chipset validation are continuously indexed from verified hardware specifications. Complete dimensions and socket pairing rules will display here once verified.

Technical Specifications

Showing 8 key specifications of 8

All values come from this product’s catalog record.
ECC support
Yes
Voltage
3.3 V
Capacity
0.25 GB
Memory clock
133 MHz
Form factor
168-pin DIMM
Buffered/registered memory
Registered (buffered)
Memory configuration
1 x 0.25
Packaging type
DIMM
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Market Value History

Price history table
DatePrice
2024-10-01$158.88
2024-10-19$158.88
2025-01-02$158.88
2026-02-09$158.88

Customer Reviews & Feedback

No customer reviews recorded yet

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Sources

Brochure HP 128278-B21 icecat.biz Icecat product datasheet Icecat

Product lifecycle

Catalog: on-market

The current catalog record marks this product as on-market; this is not independent manufacturer confirmation.

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Resources

Brochure HP 128278-B21 icecat.biz · PDF
Icecat product datasheet Icecat