Safe Checkout
Secure Payments
Fast Delivery
Order Today
Free Shipping
Across the US
Easy Returns
Hassle-Free
HP Q7721AX-RO 128MB DDR-266MHz PC2100 Non-ECC Unbuffered CL2.5 200-Pin SODIMM Single Rank Memory
- 128 MB Memory Capacity
- DDR-266MHz (PC2100)
- Non-ECC (Error-Correcting Code)
- Unbuffered
- CL2.5 Latency
- 200-Pin SODIMM
- Single Rank
- Designed for laptops and compact systems
Click on Inquire to get latest price
Free U.S. Ground Shipping
Typically 1-2 handling + 3-7 transit days
Purchase orders accepted
For government, enterprise, data center, and small business customers.
Bulk Purchase Inquiry
Volume pricing and availability
Product Overview
The HP Q7721AX-RO is a 128MB DDR-266MHz PC2100 Non-ECC Unbuffered SODIMM memory module. It features CL2.5 latency, is single rank, and uses a 200-pin connector, intended for laptops and compact PCs.
Technical Information
| Capacity | 128 MB |
| Type | DDR SDRAM |
| Speed | 266 MHz (PC2100) |
| Form Factor | SODIMM |
| Pins | 200-Pin |
| ECC | Non-ECC |
Additional Specifications
| Buffering | Unbuffered |
| CAS Latency | CL2.5 |
| Ranks | Single Rank |
| Brand | HP |
| Part Number | Q7721AX-RO |
Product Description
The HP Q7721AX-RO is a 128MB memory module designed for laptops and other portable computing devices. It operates at a DDR-266MHz frequency, which corresponds to the PC2100 standard, delivering a data transfer rate of 2100MB/s. This memory module is suitable for basic computing tasks and can help improve the overall responsiveness of older laptops or systems with limited RAM. This module is specified as Non-ECC (Non-Error-Correcting Code) and Unbuffered. Non-ECC memory is standard for most consumer laptops and does not include the error-checking capabilities found in ECC memory, which is typically used in servers and workstations. The Unbuffered nature means the memory controller communicates directly with the memory chips without an intermediate buffer, which is common for SODIMM modules. The module uses a 200-pin SODIMM form factor, making it compatible with a wide range of laptops and compact desktop systems that utilize this type of memory. The CAS Latency (CL) is rated at 2.5, indicating the timing for data access. Being 'Single Rank' means the module has one set of memory chips accessible at a time, which is a standard configuration. This memory module is a suitable replacement or upgrade for systems requiring PC2100 DDR-266MHz SODIMM memory.
