Kingston Technology logo MPN: KCP421SS8/4

Kingston Technology 4GB, DDR4 memory module 1 x 4 GB 260-pin SO-DIMM

Kingston Technology
Released: Not on record
$39.99
Amazon.com (US)
Updated 2 months ago · Compare Retailers USD pricing from verified retailers · Excl. sales tax
View price history ↓
4.8 / 5 (8 ratings)
View reviews breakdown
ECC support
N
Width
69.6 mm
CAS latency
15
Intended use
Notebook
Voltage
1.2 V
Capacity
4 GB
Form factor
260-pin SO-DIMM
NAND type
DDR4
Memory configuration
1 x 4
View 9 specifications

Overview

The Kingston Technology 4GB, DDR4 memory module 1 x 4 GB 260-pin SO-DIMM features 4 GB of memory and DDR4. Full verified specifications are listed below.

Compatibility

Memory type DDR4
  • Requires DDR4 memory — not interchangeable with other generations.

Compatibility data is automatically generated. Always verify critical specs before purchase.

Technical Specifications

Showing 9 key specifications of 9

All values come from this product’s catalog record.
ECC support
No
Width
69.6 mm
CAS latency
15
Intended use
Notebook
Voltage
1.2 V
Capacity
4 GB
Form factor
260-pin SO-DIMM
Memory type
DDR4
Memory configuration
1 x 4

Not ranked yet

Awaiting Benchmark Run

No joined ranking record is available for this product. Products enter category rankings automatically once verified benchmark and price records are indexed.

Market Value History

Latest Spot: $39.99
30D Average
—
90D Average
—
1Y Low / High
—
Historical Delta
—
Raw Price History Records115 data points
DatePrice
2026-06-30$39.99
2026-06-28$40.00
2026-03-20$39.99
2026-02-02$24.34
2026-01-31$24.33
2026-01-01$24.34
2025-12-27$24.42
2025-12-12$24.65
2025-11-23$24.66
2025-11-05$24.66
2025-11-01$24.66
2025-05-13$24.75
2025-04-21$24.76
2025-04-07$24.75
2025-03-31$24.76
2025-03-20$24.75
2025-02-25$24.76
2025-02-22$24.76
2024-12-28$24.76
2024-12-07$24.78
2024-11-30$24.78
2024-11-23$24.77
2024-11-07$24.78
2024-09-19$24.78
2024-09-09$24.79
2024-09-08$24.78
2024-07-05$24.79
2024-06-04$24.78
2024-05-25$24.78
2024-05-14$24.80
2024-05-06$24.82
2024-04-30$24.83
2024-04-27$24.82
2024-04-16$24.83
2024-04-13$24.84
2024-03-27$24.85
2024-03-19$24.85
2024-03-11$24.86
2024-02-28$24.87
2024-02-21$24.89
2024-02-08$39.89
2024-01-25$39.90
2024-01-18$39.91
2024-01-01$39.92
2023-12-19$39.99
2023-12-13$39.99
2023-11-30$54.12
2023-11-23$54.13
2023-11-01$54.13
2023-08-23$54.13
2023-07-12$54.14
2023-07-03$54.15
2023-07-02$54.14
2023-05-29$54.15
2023-05-25$54.16
2023-05-15$54.17
2023-05-13$54.18
2023-05-03$54.19
2023-04-28$54.20
2019-08-02$133.99
2019-07-07$54.20
2019-06-18$133.99
2019-04-22$54.20
2018-08-06$50.00
2018-08-01$52.00
2018-06-08$50.00
2017-12-28$52.00
2017-12-18$70.03
2017-12-05$53.83
2017-11-29$50.82
2017-11-14$59.00
2017-11-09$59.00
2017-10-31$59.00
2017-10-27$54.89
2017-10-09$46.88
2017-10-07$47.78
2017-09-26$44.05
2017-09-19$44.94
2017-09-12$45.00
2017-09-08$44.43
2017-09-02$43.66
2017-08-10$43.05
2017-07-25$42.08
2017-07-19$40.88
2017-07-13$38.93
2017-07-03$37.38
2017-06-26$29.49
2017-06-05$35.49
2017-05-31$16.33
2017-05-26$35.99
2017-05-20$31.73
2017-04-26$35.70
2017-04-18$35.99
2017-04-03$35.96
2017-03-28$35.99
2017-03-08$35.30
2017-02-06$35.73
2017-01-16$32.67
2017-01-09$31.22
2017-01-05$30.93
2016-12-26$31.20
2016-12-19$27.94
2016-12-15$28.02
2016-12-05$34.85
2016-11-29$25.51
2016-11-22$25.51
2016-11-20$26.43
2016-11-07$25.51
2016-11-02$23.17
2016-10-26$23.65
2016-10-17$31.15
2016-10-11$23.17
2016-10-03$22.85
2016-09-29$24.43
2016-09-14$22.20

Customer Reviews & Feedback

Verified Amazon Score
4.8 / 5.0

Based on 8 verified customer reviews on Amazon US.

5 star
93%
4 star
5%
3 star
2%
2 star
0%
1 star
1%

Review Verification

Hardware Quest synchronizes these ratings daily with Amazon to reflect real buyer experiences, build quality, and long-term reliability.

Verified Retailers & Price Comparison

Real-time multi-merchant price comparison across verified authorized vendors.

4 Stores Tracked
Amazon US Lowest Price
In Stock · Verified Seller
$39.99 Free Prime Delivery
Newegg
In Stock · Verified Seller
Check Price Standard Delivery
Best Buy
Check Availability · Verified Seller
Check Price Standard Delivery
B&H Photo
Check Availability · Verified Seller
Check Price Standard Delivery
Affiliate Disclosure: Hardware Quest earns a small commission on qualifying purchases at zero extra cost to you.

Sources

Product lifecycle

Catalog: on-market

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

Similar hardware

MEMORY

No close alternatives in this category yet. Browse the category.