New

Kingston A400

★★★★★ 4.8 (204,468)
Capacity 240GB
Form Factor 2.5"
Interface SATA III
Read Speed 500 MB/s
NAND TLC
Endurance 100 TBW
Kingston A400 ssd
40 Overall Score

No current retailer price

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Snapshot

Pros & Cons

Pros

  • Strong social proof (96th percentile) 96th

Cons

  • Below average capacity (10th percentile)
  • Below average speed (14th percentile)
  • Below average random (22nd 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 held steady over time
82/100Our AI sentiment readlow confidence · 5 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 reviewQ2 '23: 4.7★ · 3 reviewsQ3 '23: 5.0★ · 2 reviewsQ2 '26: 5.0★ · 5 reviews (approx. date)113111325Q2 '17Q3 '18Q4 '18Q1 '19Q2 '19Q3 '20Q2 '23Q3 '23Q2 '26
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviewsEstimated date

Based on 18 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

Speed 14
Random 21.8
Feature 53.3
Capacity 10.3
User Sentiment 57.2
Endurance 61.6
Social Proof 95.6

Specifications

Full Specifications

Drive

Capacity 240
Form Factor 2.5"
Interface SATA III
Protocol SATA
External No

Performance

Sequential Read (MB/s) 500
Sequential Write (MB/s) 450

Hardware

NAND TLC
DRAM Cache No
Controller Marvell 88SS1074

Reliability

Endurance (TBW) 100
MTBF (hours) 1000000

Features

Hardware Encryption No

vs Competition

Spec Kingston A400 Samsung 9100 PRO Western Digital WD_BLACK SN850X Crucial T710 Seagate FireCuda 530R SanDisk Western Digital WDS400T1X0M
Capacity 240GB 8TB 4TB 4TB 4TB 4TB
Form Factor 2.5" M.2 2280 M.2 2280 M.2 2280 M.2 2280 M.2 2280
Interface SATA III PCIe 5.0 x4 PCIe 4.0 x4 PCIe 5.0 x4 PCIe 4.0 x4 PCIe 5.0 x4
Seq Read 500 MB/s 14,800 MB/s 7,300 MB/s 14,500 MB/s 7,400 MB/s 14,900 MB/s
Nand Type TLC TLC TLC TLC TLC TLC
Dram Cache false true true false false true
Endurance 100 TBW 4800 TBW 2400 TBW 2400 TBW 5050 TBW 2400 TBW
Compare Compare Compare Compare Compare
Product SpeedRandomFeatureCapacityUser SentimentEnduranceSocial Proof
Kingston A400 1421.853.310.357.261.695.6
Samsung 9100 PRO Compare 9999.799.898.208695.6
Western Digital WD_BLACK SN850X Compare 8894.893.892.894.98195.6
Crucial T710 Compare 98.798.785.692.808679.7
Seagate FireCuda 530R Compare 92.296.253.392.864.695.688.5
SanDisk Western Digital WDS400T1X0M Compare 97.49997.492.80810

Usage Scores

Overall (40.3)Budget (52.1)Gaming (24)Laptop (38.9)Console (11.9)Portable (9.6)Workstation (33.7)

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

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