SAMSUNG · UFS · Exact part
KLUDG4UHDB-B2D1
Samsung S20 Ultra teardown identifies this as 128GB UFS 3.0. Device observation cross-check: iFixit Galaxy S20 Ultra teardown identifies this marking in Samsung Galaxy S20 Ultra.
Identity & specification
| Part number | KLUDG4UHDB-B2D1 |
|---|---|
| Manufacturer | SAMSUNG |
| Record type | Exact part |
| Top marking | Not established |
| Aliases | KLUDG4UHDB |
| Storage type | UFS |
| Capacity | 128 GB |
| RAM | Discrete / No RAM |
| Protocol | UFS 3.0 |
| Package | BGA-153 |
| Ball count | 153 |
| Pinout family | UFS_BGA153 |
| Voltage notes | Not established |
| Observed in devices | Samsung Galaxy S20 Ultra |
Evidence
Teardown
Source: iFixit teardown / component listing
Verification status: curated_reference
Source score 0.92 — dataset metadata, not a probability of fitment.
Screening data complete
- ✓ Exact identity from a strong source
- ✓ Capacity
- ✓ Protocol version
- ✓ Ball count
- ✓ No open conflict
A matching part number or package does not prove donor compatibility. Before replacement confirm the ball map, VCC/VCCQ, protocol generation, capacity geometry, DRAM training (MCP), CID/EXT_CSD or UFS descriptors, RPMB and OEM provisioning.