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Crucial BX500 1 TB (Micron B17A)

1 TB
Capacity
SM2259XT
Controller
TLC
Flash
SATA 6 Gbps
Interface
2.5"
Form Factor

Multiple hardware versions found.

Performance could vary due to unannounced flash/controller changes.

Back
Back
Package
Package
SSD Controller
Controller
NAND Die
NAND Die
The Crucial BX500 is a solid-state drive in the 2.5" form factor, launched in September 2018. It is available in capacities ranging from 120 GB to 2 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Crucial BX500 interfaces using a SATA 6 Gbps connection. The SSD controller is the SM2259XT from Silicon Motion, a DRAM cache is not available. Crucial has installed 64-layer TLC NAND flash on the BX500, 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 handled more quickly. The cache is sized at 48 GB, once it is full, writes complete at 85 MB/s. The BX500 is rated for sequential read speeds of up to 540 MB/s and 500 MB/s write.
At its launch, the SSD was priced at 114 USD. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. Crucial guarantees an endurance rating of 360 TBW, a typical value for consumer SSDs.

Solid-State-Drive

Capacity: 1 TB (1000 GB)
Variants: 120 GB 240 GB 480 GB 960 GB 1 TB 2 TB
Hardware Versions:
Overprovisioning: 92.7 GB / 10.0 %
Production: Active
Released: Sep 2018
Price at Launch: 114 USD
Part Number: CT1000BX500SSD1
Market: Consumer

Physical

Form Factor: 2.5"
Interface: SATA 6 Gbps
Protocol: AHCI
Power Draw: 0.04 W (Idle)
1.4 W (Avg)
2.4 W (Max)

Controller

Manufacturer: Silicon Motion
Name: SM2259XT
Architecture: ARC 32-bit
Core Count: Single-Core
Frequency: 437 MHz
Process: 28 nm
Flash Channels: 4 @ 525 MT/s
Chip Enables: 4

NAND Flash

Manufacturer: Micron
Name: B17A FortisFlash
Type: TLC
Technology: 64-layer
Speed: 50 MT/s .. 667 MT/s
Capacity: 4 chips @ 2 Tbit
ONFI: 4.0
Topology: Floating Gate
Process: 16 nm
Die Size: 108 mm²
(4.7 Gbit/mm²)
Dies per Chip: 4 dies @ 512 Gbit
Planes per Die: 4
Decks per Die: 2
Word Lines: 74 per NAND String
86.5% Vertical Efficiency
Read Time (tR): 88 µs
Program Time (tProg): 930 µs
Block Erase Time (tBERS): 15 ms
Die Read Speed: 727 MB/s
Die Write Speed: 69 MB/s
Endurance:
(up to)
3000 P/E Cycles
(40000 in SLC Mode)
Page Size: 16 KB
Block Size: 2304 Pages
Plane Size: 504 Blocks

DRAM Cache

Type: None

Performance

Sequential Read: 540 MB/s
Sequential Write: 500 MB/s
Random Read: Unknown
Random Write: Unknown
Endurance: 360 TBW
Warranty: 3 Years
MTBF: 1.5 Million Hours
Drive Writes Per Day (DWPD): 0.3
SLC Write Cache: approx. 48 GB
(dynamic only)
Speed when Cache Exhausted: approx. 85 MB/s

Features

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

Notes

Drive:

2rd revisions might come with 128-Layers from Micron
pSLC Cache volume might vary from 48GB to 56GB depending on the revision.

Controller:

This controller - as per all "XT" Silicon Motion's controller - doesn't support DRAM. It may be clocked above 400 MHz.

NAND Die:

tPROG with some Overhead: ~ 930µs (Avg)
Effective Program page time without VPP : 1900μs(TYP) ( ~ 33 MB/s)

May 11th, 2024 17:12 EDT change timezone

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