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Kioxia Exceria 240 GB

240 GB
Capacity
Phison S11
Controller
TLC
Flash
SATA 6 Gbps
Interface
2.5"
Form Factor
Front
SSD Controller
Controller
NAND Die
NAND Die
The Kioxia Exceria is a solid-state drive in the 2.5" form factor, launched in 2021. It is available in capacities ranging from 240 GB to 960 GB. This page reports specifications for the 240 GB variant. With the rest of the system, the Kioxia Exceria interfaces using a SATA 6 Gbps connection. The SSD controller is the PS3111-S11-13 from Phison, a DRAM cache is not available. Kioxia has installed 64-layer TLC NAND flash on the Exceria, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The Exceria is rated for sequential read speeds of up to 555 MB/s and 540 MB/s write; random IO reaches 79K IOPS for read and 87K for writes.
The SSD's price at launch is unknown. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. Kioxia guarantees an endurance rating of 60 TBW, a relatively low value compared to other SSDs.

Solid-State-Drive

Capacity: 240 GB
Variants: 240 GB 480 GB 960 GB
Overprovisioning: 32.5 GB / 14.5 %
Production: Active
Released: 2021
Part Number: LTC10Z240GG8
Market: Consumer

Physical

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

Controller

Manufacturer: Phison
Name: PS3111-S11-13
Architecture: ARM 32-bit
Core Count: Single-Core
Frequency: 200 MHz
Foundry: UMC
Process: 40 nm
Flash Channels: 2 @ 533 MT/s
Chip Enables: 8

NAND Flash

Manufacturer: Toshiba
Name: BiCS3
Type: TLC
Technology: 64-layer
Speed: 533 MT/s
Capacity: Unknown
Toggle: 2.0
Topology: Charge Trap
Process: 19 nm
Die Size: 132 mm²
(3.9 Gbit/mm²)
Planes per Die: 2
Decks per Die: 2
Read Time (tR): 80 µs
Program Time (tProg): 695 µs
Die Read Speed: 400 MB/s
Die Write Speed: 46 MB/s
Endurance:
(up to)		 3000 P/E Cycles
(30000 in SLC Mode)
Page Size: 16 KB
Block Size: 768 Pages
Plane Size: 2732 Blocks

DRAM Cache

Type: None

Performance

Sequential Read: 555 MB/s
Sequential Write: 540 MB/s
Random Read: 79,000 IOPS
Random Write: 87,000 IOPS
Endurance: 60 TBW
Warranty: 3 Years
MTBF: 1.5 Million Hours
Drive Writes Per Day (DWPD): 0.2
SLC Write Cache: Yes

Features

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

Same Drive

This section lists other SSDs in our database using the exact same hardware components

Notes

Controller:

In order to improve performance, Phison implemented a way that the controller utilizes it's internal 32 MiB of SRAM as some kind of "Pit-stop" that is allocated for incoming Write request in order to improve performance since it's a very quick to access and fast RAM. This implementation was called Smart Cache Flush.
This SmartCacheFlush technology allows incoming data to only have a “pit stop” in the cache and then move to the NAND flash at once. If the flash is jammed due to particular file sizes (such as random 4KB data), the cache will be treated as an “organizer”, consolidating incoming data into groups before written into the flash to improve write amplification.

NAND Die:

Read latency:
tR: 64µs (SBL)
tR: 80µs (ABL)
tPROG withoug Overhead: ~ 695µs (Avg) (~ 46 MB/s per die)
tPROG w/ ~25% Overhead: ~ 927µs (Avg) (~ 34.5 MB/s per die)
Nov 19th, 2024 23:26 EST change timezone

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