KIOXIA BG4 - 512GB PCIe NVMe Gen-3.0 x4 TLC NAND Flash HMB-SLC Cache M.2 NGFF 2230 Solid State Drive - KBG40ZNS512G


Warranty5 Year Manufacturer Warranty
AvailabilityYes - Ships in 1 to 2 Days
ManufacturerKIOXIA Corporation
SeriesKIOXIA BG4 Client SSD (Formerly Toshiba BG4)
UPC CodeDoes Not Apply

Product Specs

Product Specs
Capacity512 GB
Cache Buffer64MB Host-Memory-Buffer (HMB) Pseudo-SLC Caching
Flash TypeToshiba BiCS4 96-layer 3D TLC NAND Flash Memory (Tri-Level Cell)
ControllerToshiba KBG40ZNS 4 Channel Controller
Form FactorM.2 2230-S2-M (M Key Single Sided)
Interface SpeedPCIe NVMe 1.3b Generation 3.0 x4 32GT/s (up to 4 Lanes)
Interface ConnectorM.2 NGFF (M Key)
Max Sequential Readup to 2,200 MB/sec (Queues = 32, Threads = 1)
Max Sequential Writeup to 1,400 MB/sec (Queues = 32, Threads = 1)
4K Random Readup to 330,000K IOPS (Queues = 32, Threads = 16)
4K Random Writeup to 190,000K IOPS (Queues = 32, Threads = 16)
SSD Endurance300 TBW (Total Bytes Written)
Life Expectancy1.5 Million Hours MTTF (Mean Time To Failures)
Shock Resistance1,500G @0.5 ms half sine, 3 pulses per face
Ecc RecoveryLow-Density Parity Check (LDPC) Error Correction Technology
EncryptionTCG Pyrite 2.01; ATA Security Passthrough over NVMe
Rohs CompliantYes
Dimensions(L x W x H) 30.0mm x 22.0mm x 2.23mm
Power ConsumptionActive (AVG) Read 3.5 W / Write 3.4 W / L1.2 Mode 5.0 mW
ClassificationEntry Level Drives

Key Features

  • Fast Start-Up, Loading and File Transfers
  • Shock and Vibration Resistant
  • Incredible PCIe NVMe Generation 3.0 Performance
  • Host Memory Buffer (HMB) SLC Caching
  • Toshiba 4 Channel Controller
  • Toshiba TLC NAND Flash Memory
  • Active Garbage Collection
  • Low Power Consumption
  • Bad Block Management Technology
  • Dynamic and Static Wear Leveling Technology
  • Dynamic Write Acceleration Technology
  • Host Control Thermal Management (HCTM) Technology
  • Trim Support Technology
  • Enhanced Defect and Error Management Technology
  • Advanced Hardware LDPC ECC Technology
  • Built for Laptops, Desktops, Workstations and All-in-One PCs


The BG4 series is a line-up od compact single package NVMe SSDs with capacities up to 1TB and leverages a PCIe Generation 3.0 x4 interface and KIOXIA's 96-layer TLC BiCS FLASH. With higher bandwidth and improved flash management and Host Memory Buffer (HMB) technology, BG4 SSDs deliver best-in-class read performance in single package SSDs of up to 2,300 MB/s (sequential read) and up to 390K IOPS (random read) with active power consumption of up to 3.7 W (Typ.).

The BG4 series is available in four capacities of 128GB, 256GB, 512GB and 1TB in surface-mount M.2 1620 single package or removable M.2 2230 Module form factor options, this makes them suitable for thin and light system designs for ultra-thin PCs, as well as embedded devices and server boot in data centers.

The BG4 series is with the option of Self-Encrypting Drive (SED) model supporting TCG OPAL Version 2.01.

Built for Speedy Application Performance

This Toshiba/Kioxia BG4 SSD is built for a variety of applications such as mobile, IoT devices, and server boot. BG4 stands for the fourth generation of the company’s ball grid array (BGA) SSD product line. These new SSDs come in the tiny M.2 2230 form factor making them ideal for ultra-mobile PCs, 2-in-1 notebook PCs, IoT/embedded devices, and server and storage array boot drives.

   Key Applications

  • Industrial PCs
  • Ultra-Mobile PCs
  • 2-in-1 Notebook PCs
  • IoT/Embedded Devices
  • Server and Storage Array Boot Drives
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