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Digifast Knight 512 GB

512 GB
Capacity
Phison E12
Controller
TLC
Flash
PCIe 3.0 x4
Interface
M.2 2280
Form Factor
Front
Package
Package
SSD Controller
Controller
NAND Die
NAND Die
The Digifast Knight is a solid-state drive in the M.2 2280 form factor, launched in 2019. It is available in capacities ranging from 512 GB to 2 TB. This page reports specifications for the 512 GB variant. With the rest of the system, the Digifast Knight interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the PS5012-E12-27 from Phison. Digifast has installed 64-layer TLC NAND flash on the Knight, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are absorbed more quickly. The Knight is rated for sequential read speeds of up to 3,400 MB/s and 2,100 MB/s write; random IO reaches 357K IOPS for read and 445K for writes.
At its launch, the SSD was priced at 285 USD. The warranty length is set to five years, which is an excellent warranty period. Digifast guarantees an endurance rating of 800 TBW, a good value.

Solid-State-Drive

Capacity: 512 GB
Variants: 512 GB 1 TB 2 TB
Overprovisioning: 35.2 GB / 7.4 %
Production: Active
Released: 2019
Price at Launch: 285 USD
Part Number: DGFARGB2TM2KT4
Market: Consumer

Physical

Form Factor: M.2 2280 (Double-Sided)
Interface: PCIe 3.0 x4
Protocol: NVMe 1.3
Power Draw: 0.91 W (Idle)
Unknown (Avg)
Unknown (Max)

Controller

Manufacturer: Phison
Name: PS5012-E12-27
Architecture: ARM 32-bit Cortex-R5
Core Count: Quad-Core
Frequency: 667 MHz
Foundry: TSMC
Process: 28 nm
Flash Channels: 8 @ 667 MT/s
Chip Enables: 4
Controller Features: DRAM

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 and Size: Unknown

Performance

Sequential Read: 3,400 MB/s
Sequential Write: 2,100 MB/s
Random Read: 357,000 IOPS
Random Write: 445,000 IOPS
Endurance: 800 TBW
Warranty: 5 Years
MTBF: 1.8 Million Hours
Drive Writes Per Day (DWPD): 0.9
SLC Write Cache: Yes

Features

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

Same Drive

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

Notes

Controller:

2 main cores using Cortex-R5 clocked at 667 MHz with CoXProcessor technology (one additional dual-core) Cortex-R5 clocked at a lower clock for better efficience.

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)
Jun 1st, 2024 18:55 EDT change timezone

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