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Nextorage G Series 8 TB (Kioxia BiCS5 HDR 1Tb)

8 TB
Capacity
Phison E18
Controller
TLC
Flash
PCIe 4.0 x4
Interface
M.2 2280
Form Factor
Front
SSD Controller
Controller
The Nextorage G Series is a solid-state drive in the M.2 2280 form factor, launched on October 4th, 2022. It is only available in the 8 TB capacity listed on this page. With the rest of the system, the Nextorage G Series interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the PS5018-E18-41 from Phison, a DRAM cache chip is available. Nextorage has installed 112-layer TLC NAND flash on the G Series, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. The cache is sized at 2600 GB. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The G Series is rated for sequential read speeds of up to 7,300 MB/s and 6,600 MB/s write; random IOPS reach up to 900K for reads and 1000K for writes.
At its launch, the SSD was priced at 840 USD. The warranty length is set to five years, which is an excellent warranty period. Nextorage guarantees an endurance rating of 10000 TBW, a good value.

Solid-State-Drive

Capacity: 8 TB (8000 GB)
Overprovisioning: 741.4 GB / 10.0 %
Production: Active
Released: Oct 4th, 2022
Price at Launch: 840 USD
Part Number: NE1N8TB
Market: Consumer

Physical

Form Factor: M.2 2280 (Double-Sided)
Interface: PCIe 4.0 x4
Protocol: NVMe 1.4
Power Draw: Unknown (Idle)
Unknown (Avg)
11.5 W (Max)

Controller

Manufacturer: Phison
Name: PS5018-E18-41
Architecture: ARM 32-bit Cortex-R5
Core Count: 5-Core
Frequency: 1,000 MHz
Foundry: TSMC
Process: 12 nm
Flash Channels: 8 @ 1,600 MT/s
Chip Enables: 4
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: Toshiba
Name: BiCS5 HDR
Type: TLC
Technology: 112-layer
Speed: 1200 MT/s
Capacity: 8 chips @ 8 Tbit
Toggle: 4.0
Topology: Charge Trap
Dies per Chip: 8 dies @ 1 Tbit
Planes per Die: 2
Word Lines: 128 per NAND String
87.5% Vertical Efficiency
Read Time (tR): 56 µs
Endurance:
(up to)		 3000 P/E Cycles
(100000 in SLC Mode)
Page Size: 16 KB
Block Size: 1344 Pages

DRAM Cache

Type: DDR4
Name: SK Hynix
Capacity: 2048 MB
(2x 1024 MB)

Performance

Sequential Read: 7,300 MB/s
Sequential Write: 6,600 MB/s
Random Read: 900,000 IOPS
Random Write: 1,000,000 IOPS
Endurance: 10000 TBW
Warranty: 5 Years
MTBF: 1.6 Million Hours
Drive Writes Per Day (DWPD): 0.7
SLC Write Cache: approx. 2600 GB
(dynamic only)

Features

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

Notes

Controller:

3 main cores using Cortex-R5 clocked at 1000 MHz with CoXProcessor technology (one additional dual-core) Cortex-R5 clocked at a lower clock for better efficience. (200 - 300 MHz)

NAND Die:

Typ. Endurance: 1700 P/E Cycle
Endurance could be from 3000 to 5000 P/E Cycles
Jun 2nd, 2024 15:16 EDT change timezone

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