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Kingston A400 240GB SATA III M.2 2280

★★★★★ 4.7 (5,796)
Capacity 240GB
Form Factor M.2 2280
Interface SATA III
Read Speed 500 MB/s
NAND TLC
Kingston A400 240GB SATA III M.2 2280 ssd
28 Overall Score

No current retailer price

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Snapshot

Pros & Cons

Pros

  • Strong social proof (87th percentile) 87th

Cons

  • Below average capacity (10th percentile)
  • Below average speed (12th percentile)
  • Below average random (22nd percentile)
  • Below average endurance (29th percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has cooled since launch
78/100Our AI sentiment readlow confidence · 8 sources · Nov 2026
1★2★3★4★5★Q2 '17: 5.0★ · 1 reviewQ3 '18: 5.0★ · 1 reviewQ4 '18: 5.0★ · 3 reviewsQ1 '19: 5.0★ · 1 reviewQ2 '19: 5.0★ · 1 reviewQ3 '20: 1.0★ · 1 review113111Q2 '17Q3 '18Q4 '18Q1 '19Q2 '19Q3 '20
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 8 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

Speed 11.6
Random 22.2
Feature 53.3
Capacity 10.4
User Sentiment 43.2
Endurance 29.2
Social Proof 86.8

Specifications

Full Specifications

Drive

Capacity 240
Form Factor M.2 2280
Interface SATA III
Protocol SATA
External No

Performance

Sequential Read (MB/s) 500
Sequential Write (MB/s) 350

Hardware

NAND TLC

Reliability

MTBF (hours) 1000000

vs Competition

Spec Kingston A400 Western Digital Black SN850X Samsung 9100 PRO Crucial T500 SanDisk WD_BLACK SN8100 Seagate FireCuda 530R
Capacity 240GB 4TB 8TB 2TB 8TB 4TB
Form Factor M.2 2280 M.2 2280 M.2 2280 M.2 2280 M.2 2280 M.2 2280
Interface SATA III PCIe 4.0 x4 PCIe 5.0 x4 PCIe 4.0 x4 PCIe 5.0 x4 PCIe 4.0 x4
Seq Read 500 MB/s 7,300 MB/s 14,800 MB/s 7,400 MB/s 14,900 MB/s 7,400 MB/s
Nand Type TLC TLC TLC TLC TLC TLC
Dram Cache - true true true true false
Endurance - 2400 TBW 4800 TBW 1200 TBW 4800 TBW 5050 TBW
Compare Compare Compare Compare Compare
Product SpeedRandomFeatureCapacityUser SentimentEnduranceSocial Proof
Kingston A400 11.622.253.310.443.229.286.8
Western Digital Black SN850X Compare 88.495.288.992.594.587.995.2
Samsung 9100 PRO Compare 99.199.899.798.1085.895.2
Crucial T500 Compare 93.896.598.978.378.482.795.2
SanDisk WD_BLACK SN8100 Compare 98.999.197.398.194.580.645.2
Seagate FireCuda 530R Compare 92.596.453.392.564.695.677.4

Usage Scores

Overall (27.9)Budget (36.7)Gaming (19)Laptop (33.3)Console (9.3)Portable (7.2)Workstation (26.1)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

Other Configurations1

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