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Persyst 12-10057-11B 16-Bit ISA Memory Expansion Card PWB Time Spectrum IBM PC

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SKU:
48273
MPN:
12-10057-11B
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
2.00 LBS
Shipping:
Calculated at Checkout
  • Persyst 12-10057-11B 16-bit ISA memory expansion card – top view showing full PCB with large DIP memory array on left and logic ICs on right
  • Persyst 12-10057-11B ISA card – angled top view showing DIP memory array, logic section, and AMP bracket connector at right edge
  • Persyst Time Spectrum ISA card – close-up of logic IC section showing BB, TI, and National Semiconductor chips with 'TIME SPECTRUM' silkscreen label visible
  • Persyst 12-10057-11B – close-up of DIP memory array section with 'PERSYST INC.' PCB legend and ASSY 12-10057-11B label below chips
  • Persyst ASSY 12-10057-11B label close-up showing serial number sticker with 'WARRANTY VOID IF REMOVED' text on PCB edge
  • Persyst 12-10057-11B ISA card – bracket edge view showing AMP 25-pin parallel-style connector and single-slot ISA bracket
  • Persyst 12-10057-11B 16-bit ISA memory expansion card – second angled top view showing full board layout, memory array, and bracket connector
$50.00
Was: $100.00
Current Stock: 1

Sold Out

Description

Persyst 12-10057-11B 16-Bit ISA Memory Expansion Card PWB Time Spectrum IBM PC

A 16-bit ISA memory expansion card designed for IBM PC/AT and compatible systems. This full-length card connects via AMP 25-pin parallel-style connector and adds memory capacity to legacy computing platforms.

Specifications & What's Included

  • Brand: Persyst Inc.
  • Model: 12-10057-11B
  • Form Factor: ISA Full-Length Card
  • Bus Interface: 16-Bit ISA
  • Connector: AMP 25-pin parallel-style on bracket
  • Compatible Systems: IBM PC/AT and compatible 16-bit ISA systems
  • Product Family: Time Spectrum
  • Manufactured: United States

Applications

Memory expansion cards of this type were used in 1980s and early 1990s IBM PC/AT systems and compatibles to increase RAM capacity beyond on-board limits. They installed directly into ISA slots on the motherboard and required proper driver support. These cards were common in industrial control systems, business computing, and early telecommunications equipment utilizing standard PC architecture.

Condition: For Parts or Not Working
This Persyst 12-10057-11B 16-bit ISA memory expansion card is being sold AS-IS for parts or repair. Due to its age we cannot guarantee functionality, and it has not been bench-tested. Cosmetically the board looks good — the PCB is clean, components appear intact, and the DIP memory array and logic ICs show no obvious physical damage. The AMP bracket connector is present. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Persyst
Model:
12-10057-11B
MPN:
12-10057-11B
Secondary Model:
10-10057-00B
Type:
16-Bit ISA Memory Expansion Card
SKU:
48273
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Sold AS-IS for parts or repair; no functionality guarantee
Form Factor:
ISA Full-Length Card
Bus Interface:
ISA 16-Bit
Connector / Bracket:
AMP 25-pin parallel-style connector on bracket
Compatible With:
IBM PC/AT and compatible 16-bit ISA systems
Product Family:
Time Spectrum
Country/Region of Manufacture:
United States
PCB Label:
PERSYST INC. ASSY 12-10057-11B
Condition Notes:
Persyst 12-10057-11B 16-bit ISA memory card sold AS-IS for parts or repair. Not tested; no functionality guarantee. Board looks clean with no obvious physical damage. Please view photos and contact us with questions.
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