The 6ES7791-0KS00-0XA0 is a 128 Mbyte memory expansion module for the SIMATIC PG family — specifically the PG 720PII, Field PG, Box PC 620 (6ES7647-2.), and Panel PC 670 (6AV76.) units. It's a standard SO-DIMM PC-100 stick, so the form factor and pinout match the era's laptop-style memory slots.
Siemens 6ES7791-0KS00-0XA0 SIMATIC PG Memory Expansion, 128
MPN6ES7791-0KS00-0XA0
Siemens SIMATIC PG memory expansion, 128 Mbyte SO-DIMM PC-100, for PG 720PII, Field PG, Box PC 620, Panel PC 670.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Memory type | Memory expansion |
| Parameter | Value |
|---|---|
| Weight (approx.) | 30 g |
| Parameter | Value |
|---|---|
| Memory size | 128 Mbyte |
| Belongs to product | SIMATIC PG |
Product details
Frequently asked questions
What is the memory size and type?
128 Mbyte, type is memory expansion — a SO-DIMM PC-100 module.
Which Siemens devices is this compatible with?
SIMATIC PG 720PII, Field PG, Box PC 620 (order codes starting 6ES7647-2.), and Panel PC 670 (order codes starting 6AV76.).
Will this drop into a panel wired for a 6ES7136-6AB00-0CA1?
No — the 6ES7136-6AB00-0CA1 is a completely different product class (an analog input module for ET 200SP). This memory stick has no electrical or mechanical interface in common with that module.
MPN
6ES7791-0KS00-0XA0