Storage Systems

Crucial BX500 vs MX500 vs Kingston A400 Specifications Comparison

Crucial BX500 vs MX500 vs Kingston A400 Specifications Comparison

The SSDs have been steadily taking up a huge market share from traditional HDDs in recent times. With a wide range of SSD options currently being available, we thought of sharing information on the best budget SSDs available. We will explore and compare the features and specifications available on Crucial BX500 vs MX500 vs Kingston A400 in this post.

Related: Seagate Barracuda SSD vs Crucial MX500 vs Samsung Evo 860

Also Read: Kingston A400 vs Q500 vs KC600

Crucial MX500 – An Introduction

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Crucial MX500 Internal Specifications
Capacities Available250 GB500 GB1 TB2 TB
Form Factors (M.2 & SATA)2.5″, M.2 2280 single-sided2.5″, M.2 2280 single-sided2.5″, M.2 2280 double-sided2.5″
Disk Controller ChipSilicon Motion SM2258
NAND TypeMicron 256Gb 64-layer 3D TLC
Sequential Read / Seconds560 Mbps
Sequential Write / Seconds510 Mbps
4KB Random Reads95k IOPS
4KB Random Writes90k IOPS
Dynamic Write Acceleration (SLC Caching)Yes, dynamically sized
DevSleep Power2 mW2 mW4 mW25 mW
Slumber Power55 mW55 mW65 mW110 mW
Max Power Consumption3.0 Watts4.0 Watts5.0 Watts6.0 Watts
Encryption SupportTCG Opal 2.0 & IEEE-1667 (eDrive)
Endurance Levels100 TB180 TB360 TB700 TB
WarrantyFive years Limited

The new range of SSDs from Crucial is available in multiple capacities – 250 GB, 500 GB, 1 TB, and 2 TB. The drives, across capacities, are designed to provide 560MB/sec sequential read and 510MB/sec sequential write speeds. The new variant has also received an update in the form of a limited 5 years warranty as well.

The MX range of SSDs ensures that you have access to a wider range of capacity options available. What should make it a great choice is that it is available in 2.5-inch format and M.2 plug-in card format.

Crucial BX500 – An Overview

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Brand NameCrucial BX500
InterfaceSATA 6.0 @ Gbps
Form Factor2.5-inch internal SSD (3D NAND)
ChipsetSilicon Motion SM2258XT – Quad Channel
Capacity120 GB

240 GB

480 GB

960 GB

Speed540 Mbps Read,

500 Mbps Write

OS SupportWindows 7,8,10, OS X 10.9 or later, Linux

The Crucial BX500 is a lower-priced option and provides you access to just a few additional features compared to the MX500. There are no features like 256 bit AES encryption or Crucial calls Exclusive Data Defense on the BX500 range of SSDs.

The drive is focused on providing the lowest possible pricing and a reduced cost per gigabyte. The speed performances are at par with the SATA-based SSD standards. If you are looking for a solid option in the budget-friendly SATA SSD segment, the Crucial BX500 should be the prime option for you.

Kingston A400 – A Sneak peek

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Brand NameKingston A400 TLC NAND
InterfaceSATA @ 6 GBPS with backwards compatibility to SATA Rev. 2.0 (3Gb/s) & M.2
Form Factor2.5″ & M.2 2280
ChipsetPhison S11 controller
Capacity120 GB

240 GB

480 GB

960 GB

Speed120GB — up to 500MB/s Read and 320MB/s Write

240GB — up to 500MB/s Read and 350MB/s Write

480GB — up to 500MB/s Read and 450MB/s Write


960GB — up to 500MB/s Read and 450MB/s Write

Power Consumption0.195W Idle / 0.279W Avg / 0.642W (MAX) Read / 1.535W (MAX) Write
Total Bytes Written (TBW):120GB: 40TB

240GB: 80TB

480GB: 160TB

960GB: 300TB


1 million hours MTBF

Kingston has been one of the prominent brands offering you excellent performance at the lowest possible pricing. The A400 is a prime offering from Kingston in this genre. It is a standard 2.5 inch SSD and offers you simple packaging.

The SSD is available in three capacity levels of 120GB, 240GB, and 480GB. While all of them come with fixed read speeds of 500 Mbps, you get differential write speeds at 320 Mbps, 350Mbps, and 450Mbps, respectively, for each of their capacities.

Also Read: QLC vs TLC NAND SSD Disks Specifications Comparison & Differences

The Comparison: Crucial BX500 vs MX500 vs Kingston A400

Two of the three SSDs we have been discussing here are designed for the low price consumer base. The Crucial BX500 is specifically aimed at providing the lowest possible value per gigabyte.

Let us compare the three SSDs based on the key parameters.

Interface and form factor

The Crucial MX500 is available in two different options in terms of form factors. You have access to a 2.5 inches format along with an M.2 plug-in card format. The Crucial BX500 is available only in the 2.5-inch format alone.

The Kingston A400 is also available with the 2.5 inch SATA SSD format. All three SSDs come with the SATA 6 Gb / s or SATA III interface options. That should indicate the same performance in terms of speed.

Performance and speed

The Crucial MX500 provides you access to a read speed of 560 MB per sec and a write speed of 510 MB per sec. The corresponding numbers for the Crucial BX500 are 540 MB per sec and 500 MB per sec. That would make the MX500 slightly better in terms of performance than the sibling BX500.

Kingston A400 will provide you access to 500 MB per sec of reading speed and a write speed of 450 MB per sec. This would make it the least option among the three competing devices.

The Capacities

The Kingston A400 is available in three low-level capacity sizes. In fact, the SSD is focused on the price-conscious segment and thus is available in 120 GB, 240 GB, 480 GB, and 960 GB capacities. The same is the case with the Crucial BX500. It is available in capacities of 120 GB, 240 GB, and 480 GB.

The Crucial MX500 is focused on high-end users. It starts at 250 GB capacity, and there are other higher options available at 1 TB and 2 TB with the M.2 format. The M.2 standard on the Crucial MX500 corresponds to M.2 2280 standard.


The manufacturer warranty offered on the Kingston A400 is three years. The theoretical lifetime of the memory cells of the TLC NAND flash memory should ideally come to one million hours. This is in sharp contrast to the Crucial MX500, which offers you five years of warranty. The Crucial BX500 offers you just three years of warranty as on the Kingston offers. Even in terms of the theoretical lifetime of the memory cells of the TLC NAND flash memory, the Crucial MX500 offers you better performance than the other two options.

The Comparison Chart for the three SSDs: Crucial BX500 vs MX500 vs Kingston A400

Having gone through those specific options and features offered by the three SSDs, let us now undertake a side-by-side comparison between them. The head-on comparison should provide you with a clear understanding of the features and functions offered by each of the SSDs.

Features / ParticularsCrucial MX500

Crucial BX500

Kingston A400

Form Factor2.5 inch SATA SSD

M.2 2280 SSD

2.5 inch SATA SSD


2.5 inch SATA SSD


InterfaceSATA 6 GB per secSATA 6 GB per secSATA 6 GB per sec
Capacities available250 GB (SATA, M.2)

500 GB (SATA, M.2)

1 TB (SATA, M.2)


120 GB

240 GB

480 GB

120 GB

240 GB

480 GB

960 GB

Sequential read speed560 MB per sec540 MB per sec500 MB per sec
Sequential Write speed510 MB per sec500 MB per sec320 MB / s (120 GB)

350 MB / s (240 GB)

450 MB / s (480 GB, 960 GB)

Lifetime1.8 Million hours1.5 million hours1.0 million hours
Load capacity in TBW100 TB (250 GB)

180 TB (500 GB)

360 TB (1 TB)

700 TB (2 TB)

40TB (120GB)

80TB (240GB)

120TB (480GB)

40 TB (120 GB)

80 TB (240 GB)

160 TB (480 GB)

300 TB (960 GB)

Warranty5 years3 years3 years

The Concluding Thoughts

That was a complete comparison between the three capable options in the SSD space. Kingston A400 has been specifically designed for the price-conscious consumer market and offers a lower cost per gigabyte. The same can be stated about the Crucial BX500.

The Crucial MX500 should be an excellent option for your needs in high-end SSD performance. The fact that it is available in multiple form factors should ideally make it a great choice.

In essence, all three SSDs should provide you access to better performance and quality. We would find all three of them a great option and definitely recommendable.

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