770-BBBQ: Dell ReadyRails II Sliding Rails for 1U PowerEdge Servers (A7/A8)
Also listed as: 0CWJ0X, CWJ0X
The Dell 770-BBBQ is a Dell ReadyRails II Sliding Rails for 1U PowerEdge Servers (A7/A8) providing tool-less rack mounting and maintenance sliding access for Dell PowerEdge R640, R650, R650XS, R660 servers.
Specifications
| Part number | 770-BBBQ |
|---|---|
| Brand | Dell |
| Type | Rail kits |
| Other numbers | 0CWJ0X, CWJ0X |
| Status | current |
| Form factor | 1U Sliding Rack Rail Kit |
| Rack mount type | Tool-less 4-post square hole & round hole, tooled 4-post threaded hole |
| Rail extension | Full extension sliding rails with locking travel stops |
| Cable management | Compatible with optional 1U Cable Management Arm (CMA) |
About the 770-BBBQ
The Dell 770-BBBQ is a Dell ReadyRails II Sliding Rails for 1U PowerEdge Servers (A7/A8) engineered to mount Dell PowerEdge servers into standard 19-inch equipment racks. Built with heavy-gauge steel ball-bearing sliding mechanisms or static brackets, the 770-BBBQ provides tool-less installation into square-hole or unthreaded round-hole four-post server racks.
Compatibility
Designed for Dell PowerEdge R640, R650, R650XS, R660 servers, the 770-BBBQ accommodates standard rack depths and integrates with optional cable management arms. The 770-BBBQ supports square-hole and round-hole racks using Dell ReadyRails mounting brackets, and can adapt to threaded four-post racks with optional adapter kits.
How to identify a genuine unit
Genuine Dell 770-BBBQ rail assemblies carry stamped part numbers including DP/N 0CWJ0X, Left/Right rail indicators (L/R), and rack depth adjustment markings. Quick-release blue latch buttons on the 770-BBBQ facilitate tool-free installation and removal from equipment rack posts.
Buying used
When purchasing pre-owned 770-BBBQ rails, inspect the inner and outer sliding tracks to ensure ball bearings glide smoothly without binding or missing ball cages. Verify that both front and rear spring-loaded latch pins on the 770-BBBQ engage securely, and confirm that both left and right rail assemblies are included.
Fits these models
- Dell PowerEdge R640
- Dell PowerEdge R650
- Dell PowerEdge R650xs
- Dell PowerEdge R660
- Dell PowerEdge R660xs
- Dell PowerEdge R440
- Dell PowerEdge R450
- Dell PowerEdge R340
- Dell PowerEdge R350
Equivalent part numbers
- Dell CWJ0X Dell direct spare part number for 1U ReadyRails II sliding rail kit
FAQ
Will this rail kit fit both 14G and 16G 1U PowerEdge servers?
Yes, it supports Dell PowerEdge R640, R650, R660, and related 1U chassis.
What is the minimum and maximum rack post depth supported?
It supports standard 4-post racks with mounting depths from approximately 24 inches (608 mm) to 36 inches (914 mm).
Buying or selling 770-BBBQ?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell ReadyRails II Sliding Rails for 1U Systems, checked 2026-10-27