B2B WHOLESALE ONLY AUTHORIZED FACTORY AGENT IATF 16949 SOURCE FACTORY

The 2026 NAND shortage is everyone's problem. Your supply shouldn't be.

When stock dries up, we still ship. Memory and storage direct from an IATF 16949-certified Shenzhen source factory — in-stock MicroSD, SSD and BGA, locked allocation, automotive-grade quality batch after batch. The supply you can build your reputation on.

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Automated SMT line assembling memory modules at the source factory
35+ yrssource-factory experience
120,000 m²production facility, Shenzhen
IATF 16949automotive-grade certified
99.6%production line yield
Figures refer to our source manufacturing partner.

Who We Are

The factory's channel — not another trading desk.

Kalstor is the authorized export partner of a Shenzhen semiconductor packaging factory with 35+ years of experience and IATF 16949 automotive certification. We don't resell spot stock three steps removed from production — we bridge source-factory output directly to local buyers. One step, one margin, and a factory standing behind every order.

Hong Kong entityClean invoicing and USD/HKD settlement — familiar, frictionless for re-export buyers.
Shenzhen source factoryReal production capacity behind quotes — not middleman markup on someone else's pallets.
Native English & SpanishSpecs, contracts and after-sales handled without the language tax.

Inside the Source Factory

Real production. Not a logo on someone else's pallets.

SMT assembly, automated module lines, clean-room inspection and a 100% test floor — the manufacturing behind every order we quote.

Automated SMT production line
Automated SMT line
Clean-room chip inspection
Clean-room inspection
Module assembly and burn-in
Assembly & burn-in
100% test floor
100% test floor
Memory modules in production
Memory modules in production

Why Buy From Us

Built for buyers who got burned by flaky suppliers

In a shortage market, the question isn't "who's cheapest" — it's "who can actually deliver, on time, at consistent quality." That's the whole pitch.

01
In-stock & allocation secured

Lock your supply before the next quarterly price hike. Factory allocation — not spot-market scrambling when everyone else runs dry.

02
Automotive-grade quality

IATF 16949 source factory, 99.6% line yield, 100% H2testw tested. We publish honest usable capacity — most sellers won't.

03
Locked & traceable

BOM, controller and firmware fixed per order; every batch traceable. No silent component swaps that wreck your RMA rate.

04
Small-batch & OEM friendly

From carton-level MOQ to white-label and custom OEM. Flexible terms for resellers who are still growing.

Product Lines

What we ship in volume

Finished memory cards are the core — backed by SSD and BGA. Buy retail-ready stock, or your brand on the shell.

MicroSD / TF Cards

16GB – 256GB · C10 / U1–U3 / V10–V30

  • Consumer, IP-surveillance & industrial grades
  • Industrial option −40 ~ 85°C
  • Dashcam · CCTV · body-cam · IoT
CORE LINEHIGH-ENDURANCE

Solid State Drives

128GB – 4TB · SATA III & NVMe

  • 2.5" SATA, mSATA, M.2 2280/2242, M.2 NVMe
  • TLC NAND · PLP power-loss protection · LDPC ECC
  • System builders, IT integrators
SATA & NVMeOEM

BGA NAND

Packaged storage for embedded designs

  • Packaged BGA storage chips
  • For embedded / device makers
  • Ask for current die availability
EMBEDDED
MicroSD — published specifications3D TLC NAND · 100% H2testw tested
CapacitySpeed gradeNANDGuaranteed usable capacity¹Seq. read²
16 GBC10 / U1 / V103D TLC14,903 MB94.9 MB/s
32 GBC10 / U1 / V103D TLC29,272 MB95.4 MB/s
64 GBC10 / U3 / V30176-layer 3D TLC59,630 MB93.4 MB/s
¹ We publish the floor. Guaranteed minimum usable capacity after formatting (decimal vs. binary). In a market full of over-spec'd cards, we put our minimum in writing.   ² Sequential read, ATTO/CrystalDiskMark; varies by host. Full datasheets (endurance, sustained write, temperature) available on request.

Certifications

Source factory, certified

Our manufacturing partner holds the certifications that get you onto a serious buyer's approved-vendor list.

IATF 16949Automotive quality system
ISO 9001Quality management
ISO 14001Environmental management
EU RoHSHazardous-substance compliance

Certificate copies and full factory documentation provided to qualified buyers on request.

Request for Quote

Lock your supply — get a quote in 24 hours

Tell us the product, capacity and monthly volume. We reply with a real factory quote, usually the same business day.

B2B inquiries only. Quotes valid 3–7 days, subject to final confirmation — the NAND market is moving fast.