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Lexar NM600 240 GB

240 GB
Capacity
SM2263XT
Controller
TLC
Flash
PCIe 3.0 x4
Interface
M.2 2280
Form Factor
Package
Package
SSD Controller
Controller
NAND Die
NAND Die
The Lexar NM600 was a solid-state drive in the M.2 2280 form factor, launched in 2019, that is no longer in production. It was available in capacities ranging from 240 GB to 480 GB. This page reports specifications for the 240 GB variant. With the rest of the system, the Lexar NM600 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the SM2263XT from Silicon Motion, a DRAM cache is not available. Lexar has installed 64-layer TLC NAND flash on the NM600, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The NM600 is rated for sequential read speeds of up to 2,000 MB/s and 1,200 MB/s write; random IO reaches 110K IOPS for read and 151K for writes.
At its launch, the SSD was priced at 40 USD. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. Lexar guarantees an endurance rating of 120 TBW, a typical value for consumer SSDs.

Solid-State-Drive

Capacity: 240 GB
Variants: 240 GB 480 GB
Overprovisioning: 32.5 GB / 14.5 %
Production: End-of-life
Released: 2019
Price at Launch: 40 USD
Part Number: LNM600-240RBNA
Market: Consumer

Physical

Form Factor: M.2 2280 (Single-Sided)
Interface: PCIe 3.0 x4
Protocol: NVMe 1.3
Power Draw: Unknown

Controller

Manufacturer: Silicon Motion
Name: SM2263XT
Architecture: ARM 32-bit Cortex-R5
Core Count: Dual-Core
Frequency: 575 MHz
Foundry: TSMC
Process: 28 nm
Flash Channels: 4 @ 800 MT/s
Chip Enables: 4
Controller Features: HMB (enabled)

NAND Flash

Manufacturer: Micron
Name: B16A FortisFlash
Part Number: NW926
Rebranded: MT29F1T08EMCAGJ4-5M:A
Type: TLC
Technology: 64-layer
Speed: 50 MT/s .. 667 MT/s
Capacity: 2 chips @ 1 Tbit
ONFI: 4.0
Topology: Floating Gate
Process: 20 nm
Die Size: 58 mm²
(4.4 Gbit/mm²)
Dies per Chip: 4 dies @ 256 Gbit
Planes per Die: 2
Decks per Die: 2
Word Lines: 74 per NAND String
86.5% Vertical Efficiency
Read Time (tR): 76 µs
Program Time (tProg): 820 µs
Block Erase Time (tBERS): 15 ms
Die Read Speed: 842 MB/s
Die Write Speed: 39 MB/s
Endurance:
(up to)
1500 P/E Cycles
(40000 in SLC Mode)
Page Size: 16 KB
Block Size: 2304 Pages
Plane Size: 504 Blocks

DRAM Cache

Type: None
Host-Memory-Buffer (HMB): 64 MB

Performance

Sequential Read: 2,000 MB/s
Sequential Write: 1,200 MB/s
Random Read: 110,000 IOPS
Random Write: 151,000 IOPS
Endurance: 120 TBW
Warranty: 3 Years
MTBF: 1.5 Million Hours
Drive Writes Per Day (DWPD): 0.5
SLC Write Cache: Yes

Features

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

Notes

Controller:

The difference between this and the non-XT revision (SM2263, SM2263G, SM2263ENG, etc.) is that this revision doesn't support the DRAM cache, in fact it uses HMB (Host Memory Buffer).

Jun 1st, 2024 03:18 EDT change timezone

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