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Crucial MX500 250 GB (Micron B37R)

250 GB
Capacity
SM2259H
Controller
TLC
Flash
SATA 6 Gbps
Interface
2.5"
Form Factor

Multiple hardware versions found.

Performance could vary due to unannounced flash/controller changes.

SSD Controller
Controller
The Crucial MX500 is a solid-state drive in the 2.5" form factor, launched in 2021. It is available in capacities ranging from 250 GB to 2 TB. This page reports specifications for the 250 GB variant. With the rest of the system, the Crucial MX500 interfaces using a SATA 6 Gbps connection. The SSD controller is the SM2259H from Silicon Motion, a DRAM cache chip is available. Crucial has installed 128-layer TLC NAND flash on the MX500, the flash chips are made by Micron. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. The MX500 is rated for sequential read speeds of up to 560 MB/s and 510 MB/s write; random IOPS reach up to 95K for reads and 90K for writes.
At its launch, the SSD was priced at 80 USD. The warranty length is set to five years, which is an excellent warranty period. Crucial guarantees an endurance rating of 100 TBW, a relatively low value compared to other SSDs.

Solid-State-Drive

Capacity: 250 GB
Variants: 250 GB 500 GB 1 TB 2 TB
Hardware Versions:
Overprovisioning: 23.2 GB / 10.0 %
Production: Active
Released: 2021
Price at Launch: 80 USD
Part Number: CT250MX500SSD1
Market: Consumer

Physical

Form Factor: 2.5"
Interface: SATA 6 Gbps
Protocol: AHCI
Power Draw: 0.07 W (Idle)
Unknown (Avg)
Unknown (Max)

Controller

Manufacturer: Silicon Motion
Name: SM2259H
Architecture: ARC
Core Count: Single-Core
Frequency: 400 MHz
Foundry: TSMC
Process: 40 nm
Flash Channels: 4
Chip Enables: 8
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: Micron
Name: B37R FortisFlash
Type: TLC
Technology: 128-layer
Speed: 533 MT/s .. 1200 MT/s
Capacity: 4 chips @ 512 Gbit
ONFI: 4.1
Topology: Floating Gate
Dies per Chip: 1 die @ 512 Gbit
Planes per Die: 4
Read Time (tR): 76 µs
Program Time (tProg): 695 µs
Block Erase Time (tBERS): 15 ms
Die Read Speed: 842 MB/s
Die Write Speed: 92 MB/s
Endurance:
(up to)
5000 P/E Cycles
(40000 in SLC Mode)
Page Size: 16 KB
Block Size: 1536 Pages
Plane Size: 745 Blocks

DRAM Cache

Type: DDR3
Capacity: 256 MB
(1x 256 MB)
Organization: 2Gx16

Performance

Sequential Read: 560 MB/s
Sequential Write: 510 MB/s
Random Read: 95,000 IOPS
Random Write: 90,000 IOPS
Endurance: 100 TBW
Warranty: 5 Years
MTBF: 1.8 Million Hours
Drive Writes Per Day (DWPD): 0.2
SLC Write Cache: Yes

Features

TRIM: Yes
SMART: Yes
Power Loss Protection: No
Encryption:
  • AES-256
RGB Lighting: No
PS5 Compatible: No

Notes

Controller:

This controller may be clocked above 400 MHz.

NAND Die:

tPROG withough overhead: ~ 695 µs (Avg 92 MB/s per die)
tPROG withough overhead: ~ 853 µs (Avg 75 MB/s per die)

B37R have 2 array configuration, each with 2960/2980 blocks per die

May 13th, 2024 21:44 EDT change timezone

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