512MB 266MHz PC2100S DDR SDRAM 200-Pin SO-DIMM Laptop Memory

This 512MB memory module is designed for legacy notebook computers requiring 200-pin DDR1 PC2100S memory. It operates at DDR-266 speed and provides a compatible replacement for numerous original memory modules.

Technical Specifications

Capacity: 512MB
Memory Type: DDR SDRAM / DDR1
Speed Rating: PC2100S / DDR-266
Data Rate: 266 MT/s
Memory Clock: 133MHz
Memory Bandwidth: 2.1GB/s
Form Factor: 200-Pin SO-DIMM
Voltage: 2.5V
CAS Latency: CL2.5
ECC Support: Non-ECC
Buffering: Unbuffered / Unregistered
Data Width: 64-Bit
Typical Organization: 64M x 64
Typical Rank Configuration: 2Rx8 Low-Density
SPD Support: Serial Presence Detect
Module Dimensions: Approximately 67.6mm x 31.75mm
Application: Laptop and Notebook Memory
Quantity: One 512MB Memory Module

Interchangeable / Replacement Part Numbers

MT16VDDF6464HG-262, MT16VDDF6464HY-262, MT16VDDF6464HG-26A, MT16VDDF6464HY-26A, MT16VDDF6464HG-265, MT16VDDF6464HY-265, MT16VDDF6464HG-265A1, MT16VDDF6464HG-265B1, MT16VDDF6464HG-265C2, MT16VDDF6464HG-265G2, CT6464X265, CT6464X265.16F, M470L6423DN0-CB0, M470L6423EN0-CB0, M470L6423CK0-CA0, M470L6423CK0-CA2, M470L6423EN0-CA2, HYMD264M646A6-H, HYMD564M646A6-H, HYMD564M646BL6-H, HYMD264M646AF8-H-AA, NT512D64S8HAKWM-7K, NT512D64S8HB0FN-75B, NT512D64S8HBAFM-75B, HYS64D64020GBDL, HYS64D64020GBDL-7-B, HYS64D64020GDL-7-A, EBD52UCBAARA-7B, EBD52UC8AKDA-7B, HB54R5128KN-B75B, KVR266X64SC25/512, KVR266SO/512, KVR266SO/512R, KTC-P2800/512, KTC-P2800/512-G, KTA-PBG4266/512, KTD-INSP8200/512, KTT3311/512, KTT3614/512, KGW-GR600/512, KTS7066/512, SOT64X64D266SC25, M6464B250, TS64MSD64V6J, TS266N-512, TS512MFJ5010, TS512MCQ9087, TS512MIB0032, TS512MDL1356, TS512MSYGRX5, TS512MCSNPEG1, 10K0032, 10K0033, 10K0032-OEM, 269087-B25, 280875-001, 280875-001-ALC, 285273-001, 285524-001, 317436-001, 355926-001, 371775-001, 598861-001, PE779A, INSP1100MEM512MB, A0131636, K000005240, V000011190, V000011200, 661-2819, 661-2819B, M9002G/A, OWC2100DDRSO512, 2100DDRSO512, A+BG4D266/512, PSD512266S, N512D21OPT, D266SC512, GM-156,

✅ Confirmed Compatibility

The following list is not exhaustive. Model families may contain configurations that use different memory generations. Verify that your computer requires a 512MB 200-pin DDR1 PC2100/DDR-266 SO-DIMM before ordering.

✔️ Compaq Evo: n610c, n620c, n800c, n800v, n800w, n1000c, n1000v, n1005v, n1015v, n1020v
✔️ Compaq Presario: 800 Series, 900 Series, 1500 Series, 2100 Series, 2500 Series, 2800 Series, 3000 Series
✔️ Business Notebooks: nc4000, nc4010, nc8000, nx9000, nx9005, nx9010
✔️ Pavilion ze4000 Series: ze4200, ze4300, ze4400, ze4500
✔️ Pavilion ze5000 Series: ze5200, ze5300, ze5400, ze5500
✔️ Rugged Notebook: nr3600
✔️ Latitude C-Series: C540, C640, C840
✔️ Latitude D-Series: D400, D500, D600, D800
✔️ Inspiron: 1100, 2650, 4150, 500m, 600m, 8200, 8500
✔️ Precision Mobile Workstation: M50, M60
✔️ ThinkPad A-Series: A31, A31p
✔️ ThinkPad R-Series: R32, R40, R40e
✔️ ThinkPad T-Series: T30, T40, T40p
✔️ ThinkPad X-Series: X31
✔️ ThinkPad G-Series: G40
✔️ iBook G4 Late 2003: 12-inch 800MHz, 14-inch 933MHz, 14-inch 1GHz
✔️ iBook G4 Early 2004: 12-inch 1GHz, 14-inch 1GHz, 14-inch 1.2GHz
✔️ iBook G4 Late 2004: 12-inch 1.2GHz, 14-inch 1.33GHz
✔️ PowerBook G4 12-Inch: Early 2003 867MHz, Late 2003 1GHz DVI
✔️ iMac G4: 17-inch Early 2003 1GHz configuration with an accessible PC2100 SO-DIMM expansion slot
✔️ Satellite A15: A15-S127, A15-S128
✔️ Satellite A20: A20-S207, A20-S208, A20-S259, A20-S2591
✔️ Satellite A25: A25-S207, A25-S208, A25-S279, A25-S2791, A25-S2792, A25-S307, A25-S308
✔️ Satellite A35: A35-S159, A35-S1591

☑️ Key Features

☑️ Genuine 512MB DDR1 PC2100S memory specification
☑️ 200-pin notebook SO-DIMM form factor
☑️ DDR-266 transfer rate with a 133MHz memory clock
☑️ 2.5V non-ECC unbuffered construction
☑️ CL2.5 timing for compatible PC2100 systems
☑️ Standard SPD support for automatic memory detection
☑️ Compatible with numerous original and aftermarket part numbers
☑️ Suitable for replacing a failed module or increasing installed memory
☑️ Broad compatibility with legacy notebooks requiring low-density DDR1 memory

⚙️ Fit Notes

• This is a 512MB module, not a 512GB module.
• Confirm that your computer requires DDR1 PC2100 or PC2100S memory. This module is not DDR2.
• DDR1 SO-DIMM and DDR2 SO-DIMM modules both have 200 pins, but they use different notch positions, voltages and electrical signaling. They are not interchangeable.
• This module does not replace a 184-pin desktop DIMM, registered memory, ECC memory or server memory.
• Verify the computer’s maximum memory per slot and total supported memory before installation.
• Some early chipsets require a low-density 2Rx8 module. The ThinkPad R40e is especially sensitive to chip density and should use a compatible low-density 512MB configuration.
• Do not assume compatibility solely because a computer uses PC2700 or PC3200 DDR memory. Some systems can operate PC2100 memory at a reduced speed, while others require the faster specified module.
• When mixed with another memory module, both modules normally operate at the slowest speed supported by the computer.
• Shut down the computer, disconnect the AC adapter, remove the battery when possible and use proper antistatic precautions before installation.
• Manufacturer, chip layout and label appearance may vary among interchangeable modules. Capacity, memory generation, speed, voltage and form factor will match the listed specification.